20283340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13171}}^1$

素因数の和:13198

約数の個数: 48

約数和(自身を含む): 53109504

約数和(自身を除く): 32826164

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 13171, 26342, 52684, 65855, 92197, 131710, 144881, 184394, 263420, 289762, 368788, 460985, 579524, 724405, 921970, 1014167, 1448810, 1843940, 2028334, 2897620, 4056668, 5070835, 10141670, 20283340]

約数ペア:

[(1, 20283340), (2, 10141670), (4, 5070835), (5, 4056668), (7, 2897620), (10, 2028334), (11, 1843940), (14, 1448810), (20, 1014167), (22, 921970), (28, 724405), (35, 579524), (44, 460985), (55, 368788), (70, 289762), (77, 263420), (110, 184394), (140, 144881), (154, 131710), (220, 92197), (308, 65855), (385, 52684), (770, 26342), (1540, 13171)]