81658980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{34897}}^1$

素因数の和:34925

約数の個数: 72

約数和(自身を含む): 266760312

約数和(自身を除く): 185101332

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 34897, 69794, 104691, 139588, 174485, 209382, 314073, 348970, 418764, 453661, 523455, 628146, 697940, 907322, 1046910, 1256292, 1360983, 1570365, 1814644, 2093820, 2268305, 2721966, 3140730, 4082949, 4536610, 5443932, 6281460, 6804915, 8165898, 9073220, 13609830, 16331796, 20414745, 27219660, 40829490, 81658980]

約数ペア:

[(1, 81658980), (2, 40829490), (3, 27219660), (4, 20414745), (5, 16331796), (6, 13609830), (9, 9073220), (10, 8165898), (12, 6804915), (13, 6281460), (15, 5443932), (18, 4536610), (20, 4082949), (26, 3140730), (30, 2721966), (36, 2268305), (39, 2093820), (45, 1814644), (52, 1570365), (60, 1360983), (65, 1256292), (78, 1046910), (90, 907322), (117, 697940), (130, 628146), (156, 523455), (180, 453661), (195, 418764), (234, 348970), (260, 314073), (390, 209382), (468, 174485), (585, 139588), (780, 104691), (1170, 69794), (2340, 34897)]