81407550

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:155

約数の個数: 192

約数和(自身を含む): 247984128

約数和(自身を除く): 166576578

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 31, 35, 41, 42, 50, 61, 62, 70, 75, 82, 93, 105, 122, 123, 150, 155, 175, 183, 186, 205, 210, 217, 246, 287, 305, 310, 350, 366, 410, 427, 434, 465, 525, 574, 610, 615, 651, 775, 854, 861, 915, 930, 1025, 1050, 1085, 1230, 1271, 1281, 1302, 1435, 1525, 1550, 1722, 1830, 1891, 2050, 2135, 2170, 2325, 2501, 2542, 2562, 2870, 3050, 3075, 3255, 3782, 3813, 4270, 4305, 4575, 4650, 5002, 5425, 5673, 6150, 6355, 6405, 6510, 7175, 7503, 7626, 8610, 8897, 9150, 9455, 10675, 10850, 11346, 12505, 12710, 12810, 13237, 14350, 15006, 16275, 17507, 17794, 18910, 19065, 21350, 21525, 25010, 26474, 26691, 28365, 31775, 32025, 32550, 35014, 37515, 38130, 39711, 43050, 44485, 47275, 52521, 53382, 56730, 62525, 63550, 64050, 66185, 75030, 77531, 79422, 87535, 88970, 94550, 95325, 105042, 125050, 132370, 133455, 141825, 155062, 175070, 187575, 190650, 198555, 222425, 232593, 262605, 266910, 283650, 330925, 375150, 387655, 397110, 437675, 444850, 465186, 525210, 542717, 661850, 667275, 775310, 875350, 992775, 1085434, 1162965, 1313025, 1334550, 1628151, 1938275, 1985550, 2325930, 2626050, 2713585, 3256302, 3876550, 5427170, 5814825, 8140755, 11629650, 13567925, 16281510, 27135850, 40703775, 81407550]

約数ペア:

[(1, 81407550), (2, 40703775), (3, 27135850), (5, 16281510), (6, 13567925), (7, 11629650), (10, 8140755), (14, 5814825), (15, 5427170), (21, 3876550), (25, 3256302), (30, 2713585), (31, 2626050), (35, 2325930), (41, 1985550), (42, 1938275), (50, 1628151), (61, 1334550), (62, 1313025), (70, 1162965), (75, 1085434), (82, 992775), (93, 875350), (105, 775310), (122, 667275), (123, 661850), (150, 542717), (155, 525210), (175, 465186), (183, 444850), (186, 437675), (205, 397110), (210, 387655), (217, 375150), (246, 330925), (287, 283650), (305, 266910), (310, 262605), (350, 232593), (366, 222425), (410, 198555), (427, 190650), (434, 187575), (465, 175070), (525, 155062), (574, 141825), (610, 133455), (615, 132370), (651, 125050), (775, 105042), (854, 95325), (861, 94550), (915, 88970), (930, 87535), (1025, 79422), (1050, 77531), (1085, 75030), (1230, 66185), (1271, 64050), (1281, 63550), (1302, 62525), (1435, 56730), (1525, 53382), (1550, 52521), (1722, 47275), (1830, 44485), (1891, 43050), (2050, 39711), (2135, 38130), (2170, 37515), (2325, 35014), (2501, 32550), (2542, 32025), (2562, 31775), (2870, 28365), (3050, 26691), (3075, 26474), (3255, 25010), (3782, 21525), (3813, 21350), (4270, 19065), (4305, 18910), (4575, 17794), (4650, 17507), (5002, 16275), (5425, 15006), (5673, 14350), (6150, 13237), (6355, 12810), (6405, 12710), (6510, 12505), (7175, 11346), (7503, 10850), (7626, 10675), (8610, 9455), (8897, 9150)]