139666940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{14051}}^1$

素因数の和:14138

約数の個数: 48

約数和(自身を含む): 339945984

約数和(自身を除く): 200279044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 14051, 28102, 56204, 70255, 98357, 140510, 196714, 281020, 393428, 491785, 983570, 997621, 1967140, 1995242, 3990484, 4988105, 6983347, 9976210, 13966694, 19952420, 27933388, 34916735, 69833470, 139666940]

約数ペア:

[(1, 139666940), (2, 69833470), (4, 34916735), (5, 27933388), (7, 19952420), (10, 13966694), (14, 9976210), (20, 6983347), (28, 4988105), (35, 3990484), (70, 1995242), (71, 1967140), (140, 997621), (142, 983570), (284, 491785), (355, 393428), (497, 281020), (710, 196714), (994, 140510), (1420, 98357), (1988, 70255), (2485, 56204), (4970, 28102), (9940, 14051)]