18344020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{331}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 41162688

約数和(自身を除く): 22818668

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 163, 170, 326, 331, 340, 652, 662, 815, 1324, 1630, 1655, 2771, 3260, 3310, 5542, 5627, 6620, 11084, 11254, 13855, 22508, 27710, 28135, 53953, 55420, 56270, 107906, 112540, 215812, 269765, 539530, 917201, 1079060, 1834402, 3668804, 4586005, 9172010, 18344020]

約数ペア:

[(1, 18344020), (2, 9172010), (4, 4586005), (5, 3668804), (10, 1834402), (17, 1079060), (20, 917201), (34, 539530), (68, 269765), (85, 215812), (163, 112540), (170, 107906), (326, 56270), (331, 55420), (340, 53953), (652, 28135), (662, 27710), (815, 22508), (1324, 13855), (1630, 11254), (1655, 11084), (2771, 6620), (3260, 5627), (3310, 5542)]