18640373480

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{317}}^1\times {\mathrm{27737}}^1$

素因数の和:28118

約数の個数: 64

約数和(自身を含む): 42868524240

約数和(自身を除く): 24228150760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 317, 424, 530, 634, 1060, 1268, 1585, 2120, 2536, 3170, 6340, 12680, 16801, 27737, 33602, 55474, 67204, 84005, 110948, 134408, 138685, 168010, 221896, 277370, 336020, 554740, 672040, 1109480, 1470061, 2940122, 5880244, 7350305, 8792629, 11760488, 14700610, 17585258, 29401220, 35170516, 43963145, 58802440, 70341032, 87926290, 175852580, 351705160, 466009337, 932018674, 1864037348, 2330046685, 3728074696, 4660093370, 9320186740, 18640373480]

約数ペア:

[(1, 18640373480), (2, 9320186740), (4, 4660093370), (5, 3728074696), (8, 2330046685), (10, 1864037348), (20, 932018674), (40, 466009337), (53, 351705160), (106, 175852580), (212, 87926290), (265, 70341032), (317, 58802440), (424, 43963145), (530, 35170516), (634, 29401220), (1060, 17585258), (1268, 14700610), (1585, 11760488), (2120, 8792629), (2536, 7350305), (3170, 5880244), (6340, 2940122), (12680, 1470061), (16801, 1109480), (27737, 672040), (33602, 554740), (55474, 336020), (67204, 277370), (84005, 221896), (110948, 168010), (134408, 138685)]