3101240

素因数分解:

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

素因数の和:144

約数の個数: 64

約数和(自身を含む): 7499520

約数和(自身を除く): 4398280

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 61, 62, 82, 122, 124, 155, 164, 205, 244, 248, 305, 310, 328, 410, 488, 610, 620, 820, 1220, 1240, 1271, 1640, 1891, 2440, 2501, 2542, 3782, 5002, 5084, 6355, 7564, 9455, 10004, 10168, 12505, 12710, 15128, 18910, 20008, 25010, 25420, 37820, 50020, 50840, 75640, 77531, 100040, 155062, 310124, 387655, 620248, 775310, 1550620, 3101240]

約数ペア:

[(1, 3101240), (2, 1550620), (4, 775310), (5, 620248), (8, 387655), (10, 310124), (20, 155062), (31, 100040), (40, 77531), (41, 75640), (61, 50840), (62, 50020), (82, 37820), (122, 25420), (124, 25010), (155, 20008), (164, 18910), (205, 15128), (244, 12710), (248, 12505), (305, 10168), (310, 10004), (328, 9455), (410, 7564), (488, 6355), (610, 5084), (620, 5002), (820, 3782), (1220, 2542), (1240, 2501), (1271, 2440), (1640, 1891)]