18777720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12037}}^1$

素因数の和:12064

約数の個数: 64

約数和(自身を含む): 60671520

約数和(自身を除く): 41893800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 12037, 24074, 36111, 48148, 60185, 72222, 96296, 120370, 144444, 156481, 180555, 240740, 288888, 312962, 361110, 469443, 481480, 625924, 722220, 782405, 938886, 1251848, 1444440, 1564810, 1877772, 2347215, 3129620, 3755544, 4694430, 6259240, 9388860, 18777720]

約数ペア:

[(1, 18777720), (2, 9388860), (3, 6259240), (4, 4694430), (5, 3755544), (6, 3129620), (8, 2347215), (10, 1877772), (12, 1564810), (13, 1444440), (15, 1251848), (20, 938886), (24, 782405), (26, 722220), (30, 625924), (39, 481480), (40, 469443), (52, 361110), (60, 312962), (65, 288888), (78, 240740), (104, 180555), (120, 156481), (130, 144444), (156, 120370), (195, 96296), (260, 72222), (312, 60185), (390, 48148), (520, 36111), (780, 24074), (1560, 12037)]