51240680

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{271}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 120441600

約数和(自身を除く): 69200920

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 163, 232, 271, 290, 326, 542, 580, 652, 815, 1084, 1160, 1304, 1355, 1630, 2168, 2710, 3260, 4727, 5420, 6520, 7859, 9454, 10840, 15718, 18908, 23635, 31436, 37816, 39295, 44173, 47270, 62872, 78590, 88346, 94540, 157180, 176692, 189080, 220865, 314360, 353384, 441730, 883460, 1281017, 1766920, 2562034, 5124068, 6405085, 10248136, 12810170, 25620340, 51240680]

約数ペア:

[(1, 51240680), (2, 25620340), (4, 12810170), (5, 10248136), (8, 6405085), (10, 5124068), (20, 2562034), (29, 1766920), (40, 1281017), (58, 883460), (116, 441730), (145, 353384), (163, 314360), (232, 220865), (271, 189080), (290, 176692), (326, 157180), (542, 94540), (580, 88346), (652, 78590), (815, 62872), (1084, 47270), (1160, 44173), (1304, 39295), (1355, 37816), (1630, 31436), (2168, 23635), (2710, 18908), (3260, 15718), (4727, 10840), (5420, 9454), (6520, 7859)]