64881740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{42131}}^1$

素因数の和:42158

約数の個数: 48

約数和(自身を含む): 169876224

約数和(自身を除く): 104994484

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 42131, 84262, 168524, 210655, 294917, 421310, 463441, 589834, 842620, 926882, 1179668, 1474585, 1853764, 2317205, 2949170, 3244087, 4634410, 5898340, 6488174, 9268820, 12976348, 16220435, 32440870, 64881740]

約数ペア:

[(1, 64881740), (2, 32440870), (4, 16220435), (5, 12976348), (7, 9268820), (10, 6488174), (11, 5898340), (14, 4634410), (20, 3244087), (22, 2949170), (28, 2317205), (35, 1853764), (44, 1474585), (55, 1179668), (70, 926882), (77, 842620), (110, 589834), (140, 463441), (154, 421310), (220, 294917), (308, 210655), (385, 168524), (770, 84262), (1540, 42131)]