66947660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{683}}^1$

素因数の和:747

約数の個数: 72

約数和(自身を含む): 157716720

約数和(自身を除く): 90769060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 169, 260, 290, 338, 377, 580, 676, 683, 754, 845, 1366, 1508, 1690, 1885, 2732, 3380, 3415, 3770, 4901, 6830, 7540, 8879, 9802, 13660, 17758, 19604, 19807, 24505, 35516, 39614, 44395, 49010, 79228, 88790, 98020, 99035, 115427, 177580, 198070, 230854, 257491, 396140, 461708, 514982, 577135, 1029964, 1154270, 1287455, 2308540, 2574910, 3347383, 5149820, 6694766, 13389532, 16736915, 33473830, 66947660]

約数ペア:

[(1, 66947660), (2, 33473830), (4, 16736915), (5, 13389532), (10, 6694766), (13, 5149820), (20, 3347383), (26, 2574910), (29, 2308540), (52, 1287455), (58, 1154270), (65, 1029964), (116, 577135), (130, 514982), (145, 461708), (169, 396140), (260, 257491), (290, 230854), (338, 198070), (377, 177580), (580, 115427), (676, 99035), (683, 98020), (754, 88790), (845, 79228), (1366, 49010), (1508, 44395), (1690, 39614), (1885, 35516), (2732, 24505), (3380, 19807), (3415, 19604), (3770, 17758), (4901, 13660), (6830, 9802), (7540, 8879)]