51129520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{233}}^1$

素因数の和:470

約数の個数: 80

約数和(自身を含む): 129179232

約数和(自身を除く): 78049712

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 211, 233, 260, 422, 466, 520, 844, 932, 1040, 1055, 1165, 1688, 1864, 2110, 2330, 2743, 3029, 3376, 3728, 4220, 4660, 5486, 6058, 8440, 9320, 10972, 12116, 13715, 15145, 16880, 18640, 21944, 24232, 27430, 30290, 43888, 48464, 49163, 54860, 60580, 98326, 109720, 121160, 196652, 219440, 242320, 245815, 393304, 491630, 639119, 786608, 983260, 1278238, 1966520, 2556476, 3195595, 3933040, 5112952, 6391190, 10225904, 12782380, 25564760, 51129520]

約数ペア:

[(1, 51129520), (2, 25564760), (4, 12782380), (5, 10225904), (8, 6391190), (10, 5112952), (13, 3933040), (16, 3195595), (20, 2556476), (26, 1966520), (40, 1278238), (52, 983260), (65, 786608), (80, 639119), (104, 491630), (130, 393304), (208, 245815), (211, 242320), (233, 219440), (260, 196652), (422, 121160), (466, 109720), (520, 98326), (844, 60580), (932, 54860), (1040, 49163), (1055, 48464), (1165, 43888), (1688, 30290), (1864, 27430), (2110, 24232), (2330, 21944), (2743, 18640), (3029, 16880), (3376, 15145), (3728, 13715), (4220, 12116), (4660, 10972), (5486, 9320), (6058, 8440)]