39838100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:297

約数の個数: 72

約数和(自身を含む): 90994176

約数和(自身を除く): 51156076

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 71, 100, 124, 142, 155, 181, 284, 310, 355, 362, 620, 710, 724, 775, 905, 1420, 1550, 1775, 1810, 2201, 3100, 3550, 3620, 4402, 4525, 5611, 7100, 8804, 9050, 11005, 11222, 12851, 18100, 22010, 22444, 25702, 28055, 44020, 51404, 55025, 56110, 64255, 110050, 112220, 128510, 140275, 220100, 257020, 280550, 321275, 398381, 561100, 642550, 796762, 1285100, 1593524, 1991905, 3983810, 7967620, 9959525, 19919050, 39838100]

約数ペア:

[(1, 39838100), (2, 19919050), (4, 9959525), (5, 7967620), (10, 3983810), (20, 1991905), (25, 1593524), (31, 1285100), (50, 796762), (62, 642550), (71, 561100), (100, 398381), (124, 321275), (142, 280550), (155, 257020), (181, 220100), (284, 140275), (310, 128510), (355, 112220), (362, 110050), (620, 64255), (710, 56110), (724, 55025), (775, 51404), (905, 44020), (1420, 28055), (1550, 25702), (1775, 22444), (1810, 22010), (2201, 18100), (3100, 12851), (3550, 11222), (3620, 11005), (4402, 9050), (4525, 8804), (5611, 7100)]