18386620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2153}}^1$

素因数の和:2230

約数の個数: 48

約数和(自身を含む): 44872128

約数和(自身を除く): 26485508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 2153, 4270, 4306, 8540, 8612, 10765, 15071, 21530, 30142, 43060, 60284, 75355, 131333, 150710, 262666, 301420, 525332, 656665, 919331, 1313330, 1838662, 2626660, 3677324, 4596655, 9193310, 18386620]

約数ペア:

[(1, 18386620), (2, 9193310), (4, 4596655), (5, 3677324), (7, 2626660), (10, 1838662), (14, 1313330), (20, 919331), (28, 656665), (35, 525332), (61, 301420), (70, 262666), (122, 150710), (140, 131333), (244, 75355), (305, 60284), (427, 43060), (610, 30142), (854, 21530), (1220, 15071), (1708, 10765), (2135, 8612), (2153, 8540), (4270, 4306)]