69888940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{647}}^1$

素因数の和:1158

約数の個数: 48

約数和(自身を含む): 160683264

約数和(自身を除く): 90794324

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 491, 647, 982, 1294, 1964, 2455, 2588, 3235, 4910, 5401, 6470, 7117, 9820, 10802, 12940, 14234, 21604, 27005, 28468, 35585, 54010, 71170, 108020, 142340, 317677, 635354, 1270708, 1588385, 3176770, 3494447, 6353540, 6988894, 13977788, 17472235, 34944470, 69888940]

約数ペア:

[(1, 69888940), (2, 34944470), (4, 17472235), (5, 13977788), (10, 6988894), (11, 6353540), (20, 3494447), (22, 3176770), (44, 1588385), (55, 1270708), (110, 635354), (220, 317677), (491, 142340), (647, 108020), (982, 71170), (1294, 54010), (1964, 35585), (2455, 28468), (2588, 27005), (3235, 21604), (4910, 14234), (5401, 12940), (6470, 10802), (7117, 9820)]