6647960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{521}}^1$

素因数の和:572

約数の個数: 64

約数和(自身を含む): 16912800

約数和(自身を除く): 10264840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 145, 220, 232, 290, 319, 440, 521, 580, 638, 1042, 1160, 1276, 1595, 2084, 2552, 2605, 3190, 4168, 5210, 5731, 6380, 10420, 11462, 12760, 15109, 20840, 22924, 28655, 30218, 45848, 57310, 60436, 75545, 114620, 120872, 151090, 166199, 229240, 302180, 332398, 604360, 664796, 830995, 1329592, 1661990, 3323980, 6647960]

約数ペア:

[(1, 6647960), (2, 3323980), (4, 1661990), (5, 1329592), (8, 830995), (10, 664796), (11, 604360), (20, 332398), (22, 302180), (29, 229240), (40, 166199), (44, 151090), (55, 120872), (58, 114620), (88, 75545), (110, 60436), (116, 57310), (145, 45848), (220, 30218), (232, 28655), (290, 22924), (319, 20840), (440, 15109), (521, 12760), (580, 11462), (638, 10420), (1042, 6380), (1160, 5731), (1276, 5210), (1595, 4168), (2084, 3190), (2552, 2605)]