1285480100

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:334

約数の個数: 144

約数和(自身を含む): 3033139200

約数和(自身を除く): 1747659100

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 31, 50, 58, 62, 79, 100, 116, 124, 145, 155, 158, 181, 290, 310, 316, 362, 395, 580, 620, 724, 725, 775, 790, 899, 905, 1450, 1550, 1580, 1798, 1810, 1975, 2291, 2449, 2900, 3100, 3596, 3620, 3950, 4495, 4525, 4582, 4898, 5249, 5611, 7900, 8990, 9050, 9164, 9796, 10498, 11222, 11455, 12245, 14299, 17980, 18100, 20996, 22444, 22475, 22910, 24490, 26245, 28055, 28598, 44950, 45820, 48980, 52490, 56110, 57196, 57275, 61225, 71021, 71495, 89900, 104980, 112220, 114550, 122450, 131225, 140275, 142042, 142990, 162719, 229100, 244900, 262450, 280550, 284084, 285980, 325438, 355105, 357475, 414671, 443269, 524900, 561100, 650876, 710210, 714950, 813595, 829342, 886538, 1420420, 1429900, 1627190, 1658684, 1773076, 1775525, 2073355, 2216345, 3254380, 3551050, 4067975, 4146710, 4432690, 7102100, 8135950, 8293420, 8865380, 10366775, 11081725, 12854801, 16271900, 20733550, 22163450, 25709602, 41467100, 44326900, 51419204, 64274005, 128548010, 257096020, 321370025, 642740050, 1285480100]

約数ペア:

[(1, 1285480100), (2, 642740050), (4, 321370025), (5, 257096020), (10, 128548010), (20, 64274005), (25, 51419204), (29, 44326900), (31, 41467100), (50, 25709602), (58, 22163450), (62, 20733550), (79, 16271900), (100, 12854801), (116, 11081725), (124, 10366775), (145, 8865380), (155, 8293420), (158, 8135950), (181, 7102100), (290, 4432690), (310, 4146710), (316, 4067975), (362, 3551050), (395, 3254380), (580, 2216345), (620, 2073355), (724, 1775525), (725, 1773076), (775, 1658684), (790, 1627190), (899, 1429900), (905, 1420420), (1450, 886538), (1550, 829342), (1580, 813595), (1798, 714950), (1810, 710210), (1975, 650876), (2291, 561100), (2449, 524900), (2900, 443269), (3100, 414671), (3596, 357475), (3620, 355105), (3950, 325438), (4495, 285980), (4525, 284084), (4582, 280550), (4898, 262450), (5249, 244900), (5611, 229100), (7900, 162719), (8990, 142990), (9050, 142042), (9164, 140275), (9796, 131225), (10498, 122450), (11222, 114550), (11455, 112220), (12245, 104980), (14299, 89900), (17980, 71495), (18100, 71021), (20996, 61225), (22444, 57275), (22475, 57196), (22910, 56110), (24490, 52490), (26245, 48980), (28055, 45820), (28598, 44950)]