18717380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{571}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 43243200

約数和(自身を除く): 24525820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 298, 571, 596, 745, 1142, 1490, 1639, 2284, 2855, 2980, 3278, 5710, 6281, 6556, 8195, 11420, 12562, 16390, 25124, 31405, 32780, 62810, 85079, 125620, 170158, 340316, 425395, 850790, 935869, 1701580, 1871738, 3743476, 4679345, 9358690, 18717380]

約数ペア:

[(1, 18717380), (2, 9358690), (4, 4679345), (5, 3743476), (10, 1871738), (11, 1701580), (20, 935869), (22, 850790), (44, 425395), (55, 340316), (110, 170158), (149, 125620), (220, 85079), (298, 62810), (571, 32780), (596, 31405), (745, 25124), (1142, 16390), (1490, 12562), (1639, 11420), (2284, 8195), (2855, 6556), (2980, 6281), (3278, 5710)]