18520640

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1867}}^1$

素因数の和:1915

約数の個数: 56

約数和(自身を含む): 45549312

約数和(自身を除く): 27028672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1867, 1984, 2480, 3734, 4960, 7468, 9335, 9920, 14936, 18670, 29872, 37340, 57877, 59744, 74680, 115754, 119488, 149360, 231508, 289385, 298720, 463016, 578770, 597440, 926032, 1157540, 1852064, 2315080, 3704128, 4630160, 9260320, 18520640]

約数ペア:

[(1, 18520640), (2, 9260320), (4, 4630160), (5, 3704128), (8, 2315080), (10, 1852064), (16, 1157540), (20, 926032), (31, 597440), (32, 578770), (40, 463016), (62, 298720), (64, 289385), (80, 231508), (124, 149360), (155, 119488), (160, 115754), (248, 74680), (310, 59744), (320, 57877), (496, 37340), (620, 29872), (992, 18670), (1240, 14936), (1867, 9920), (1984, 9335), (2480, 7468), (3734, 4960)]