399156680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{6793}}^1$

素因数の和:6930

約数の個数: 64

約数和(自身を含む): 975890160

約数和(自身を除く): 576733480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 113, 130, 226, 260, 452, 520, 565, 904, 1130, 1469, 2260, 2938, 4520, 5876, 6793, 7345, 11752, 13586, 14690, 27172, 29380, 33965, 54344, 58760, 67930, 88309, 135860, 176618, 271720, 353236, 441545, 706472, 767609, 883090, 1535218, 1766180, 3070436, 3532360, 3838045, 6140872, 7676090, 9978917, 15352180, 19957834, 30704360, 39915668, 49894585, 79831336, 99789170, 199578340, 399156680]

約数ペア:

[(1, 399156680), (2, 199578340), (4, 99789170), (5, 79831336), (8, 49894585), (10, 39915668), (13, 30704360), (20, 19957834), (26, 15352180), (40, 9978917), (52, 7676090), (65, 6140872), (104, 3838045), (113, 3532360), (130, 3070436), (226, 1766180), (260, 1535218), (452, 883090), (520, 767609), (565, 706472), (904, 441545), (1130, 353236), (1469, 271720), (2260, 176618), (2938, 135860), (4520, 88309), (5876, 67930), (6793, 58760), (7345, 54344), (11752, 33965), (13586, 29380), (14690, 27172)]