257495700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:263

約数の個数: 288

約数和(自身を含む): 947939328

約数和(自身を除く): 690443628

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 25, 28, 30, 33, 35, 42, 44, 50, 55, 60, 66, 70, 71, 75, 77, 84, 100, 105, 110, 132, 140, 142, 150, 154, 157, 165, 175, 210, 213, 220, 231, 275, 284, 300, 308, 314, 330, 350, 355, 385, 420, 426, 462, 471, 497, 525, 550, 628, 660, 700, 710, 770, 781, 785, 825, 852, 924, 942, 994, 1050, 1065, 1099, 1100, 1155, 1420, 1491, 1540, 1562, 1570, 1650, 1727, 1775, 1884, 1925, 1988, 2100, 2130, 2198, 2310, 2343, 2355, 2485, 2982, 3124, 3140, 3297, 3300, 3454, 3550, 3850, 3905, 3925, 4260, 4396, 4620, 4686, 4710, 4970, 5181, 5325, 5467, 5495, 5775, 5964, 6594, 6908, 7100, 7455, 7700, 7810, 7850, 8635, 9372, 9420, 9940, 10362, 10650, 10934, 10990, 11147, 11550, 11715, 11775, 12089, 12425, 13188, 14910, 15620, 15700, 16401, 16485, 17270, 19525, 20724, 21300, 21868, 21980, 22294, 23100, 23430, 23550, 24178, 24850, 25905, 27335, 27475, 29820, 32802, 32970, 33441, 34540, 36267, 37275, 39050, 43175, 44588, 46860, 47100, 48356, 49700, 51810, 54670, 54950, 55735, 58575, 60445, 65604, 65940, 66882, 72534, 74550, 78029, 78100, 82005, 82425, 86350, 103620, 109340, 109900, 111470, 117150, 120890, 122617, 129525, 133764, 136675, 145068, 149100, 156058, 164010, 164850, 167205, 172700, 181335, 222940, 234087, 234300, 241780, 245234, 259050, 273350, 278675, 302225, 312116, 328020, 329700, 334410, 362670, 367851, 390145, 410025, 468174, 490468, 518100, 546700, 557350, 604450, 613085, 668820, 725340, 735702, 780290, 820050, 836025, 858319, 906675, 936348, 1114700, 1170435, 1208900, 1226170, 1471404, 1560580, 1640100, 1672050, 1716638, 1813350, 1839255, 1950725, 2340870, 2452340, 2574957, 3065425, 3344100, 3433276, 3626700, 3678510, 3901450, 4291595, 4681740, 5149914, 5852175, 6130850, 7357020, 7802900, 8583190, 9196275, 10299828, 11704350, 12261700, 12874785, 17166380, 18392550, 21457975, 23408700, 25749570, 36785100, 42915950, 51499140, 64373925, 85831900, 128747850, 257495700]

約数ペア:

[(1, 257495700), (2, 128747850), (3, 85831900), (4, 64373925), (5, 51499140), (6, 42915950), (7, 36785100), (10, 25749570), (11, 23408700), (12, 21457975), (14, 18392550), (15, 17166380), (20, 12874785), (21, 12261700), (22, 11704350), (25, 10299828), (28, 9196275), (30, 8583190), (33, 7802900), (35, 7357020), (42, 6130850), (44, 5852175), (50, 5149914), (55, 4681740), (60, 4291595), (66, 3901450), (70, 3678510), (71, 3626700), (75, 3433276), (77, 3344100), (84, 3065425), (100, 2574957), (105, 2452340), (110, 2340870), (132, 1950725), (140, 1839255), (142, 1813350), (150, 1716638), (154, 1672050), (157, 1640100), (165, 1560580), (175, 1471404), (210, 1226170), (213, 1208900), (220, 1170435), (231, 1114700), (275, 936348), (284, 906675), (300, 858319), (308, 836025), (314, 820050), (330, 780290), (350, 735702), (355, 725340), (385, 668820), (420, 613085), (426, 604450), (462, 557350), (471, 546700), (497, 518100), (525, 490468), (550, 468174), (628, 410025), (660, 390145), (700, 367851), (710, 362670), (770, 334410), (781, 329700), (785, 328020), (825, 312116), (852, 302225), (924, 278675), (942, 273350), (994, 259050), (1050, 245234), (1065, 241780), (1099, 234300), (1100, 234087), (1155, 222940), (1420, 181335), (1491, 172700), (1540, 167205), (1562, 164850), (1570, 164010), (1650, 156058), (1727, 149100), (1775, 145068), (1884, 136675), (1925, 133764), (1988, 129525), (2100, 122617), (2130, 120890), (2198, 117150), (2310, 111470), (2343, 109900), (2355, 109340), (2485, 103620), (2982, 86350), (3124, 82425), (3140, 82005), (3297, 78100), (3300, 78029), (3454, 74550), (3550, 72534), (3850, 66882), (3905, 65940), (3925, 65604), (4260, 60445), (4396, 58575), (4620, 55735), (4686, 54950), (4710, 54670), (4970, 51810), (5181, 49700), (5325, 48356), (5467, 47100), (5495, 46860), (5775, 44588), (5964, 43175), (6594, 39050), (6908, 37275), (7100, 36267), (7455, 34540), (7700, 33441), (7810, 32970), (7850, 32802), (8635, 29820), (9372, 27475), (9420, 27335), (9940, 25905), (10362, 24850), (10650, 24178), (10934, 23550), (10990, 23430), (11147, 23100), (11550, 22294), (11715, 21980), (11775, 21868), (12089, 21300), (12425, 20724), (13188, 19525), (14910, 17270), (15620, 16485), (15700, 16401)]