312335980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{17971}}^1$

素因数の和:18070

約数の個数: 48

約数和(自身を含む): 724631040

約数和(自身を除く): 412295060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1580, 1738, 3476, 4345, 8690, 17380, 17971, 35942, 71884, 89855, 179710, 197681, 359420, 395362, 790724, 988405, 1419709, 1976810, 2839418, 3953620, 5678836, 7098545, 14197090, 15616799, 28394180, 31233598, 62467196, 78083995, 156167990, 312335980]

約数ペア:

[(1, 312335980), (2, 156167990), (4, 78083995), (5, 62467196), (10, 31233598), (11, 28394180), (20, 15616799), (22, 14197090), (44, 7098545), (55, 5678836), (79, 3953620), (110, 2839418), (158, 1976810), (220, 1419709), (316, 988405), (395, 790724), (790, 395362), (869, 359420), (1580, 197681), (1738, 179710), (3476, 89855), (4345, 71884), (8690, 35942), (17380, 17971)]