1638699960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{104243}}^1$

素因数の和:104388

約数の個数: 64

約数和(自身を含む): 4953674880

約数和(自身を除く): 3314974920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 131, 262, 393, 524, 655, 786, 1048, 1310, 1572, 1965, 2620, 3144, 3930, 5240, 7860, 15720, 104243, 208486, 312729, 416972, 521215, 625458, 833944, 1042430, 1250916, 1563645, 2084860, 2501832, 3127290, 4169720, 6254580, 12509160, 13655833, 27311666, 40967499, 54623332, 68279165, 81934998, 109246664, 136558330, 163869996, 204837495, 273116660, 327739992, 409674990, 546233320, 819349980, 1638699960]

約数ペア:

[(1, 1638699960), (2, 819349980), (3, 546233320), (4, 409674990), (5, 327739992), (6, 273116660), (8, 204837495), (10, 163869996), (12, 136558330), (15, 109246664), (20, 81934998), (24, 68279165), (30, 54623332), (40, 40967499), (60, 27311666), (120, 13655833), (131, 12509160), (262, 6254580), (393, 4169720), (524, 3127290), (655, 2501832), (786, 2084860), (1048, 1563645), (1310, 1250916), (1572, 1042430), (1965, 833944), (2620, 625458), (3144, 521215), (3930, 416972), (5240, 312729), (7860, 208486), (15720, 104243)]