1387964240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43051}}^1$

素因数の和:43108

約数の個数: 80

約数和(自身を含む): 3587437056

約数和(自身を除く): 2199472816

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 16120, 32240, 43051, 86102, 172204, 215255, 344408, 430510, 559663, 688816, 861020, 1119326, 1334581, 1722040, 2238652, 2669162, 2798315, 3444080, 4477304, 5338324, 5596630, 6672905, 8954608, 10676648, 11193260, 13345810, 17349553, 21353296, 22386520, 26691620, 34699106, 44773040, 53383240, 69398212, 86747765, 106766480, 138796424, 173495530, 277592848, 346991060, 693982120, 1387964240]

約数ペア:

[(1, 1387964240), (2, 693982120), (4, 346991060), (5, 277592848), (8, 173495530), (10, 138796424), (13, 106766480), (16, 86747765), (20, 69398212), (26, 53383240), (31, 44773040), (40, 34699106), (52, 26691620), (62, 22386520), (65, 21353296), (80, 17349553), (104, 13345810), (124, 11193260), (130, 10676648), (155, 8954608), (208, 6672905), (248, 5596630), (260, 5338324), (310, 4477304), (403, 3444080), (496, 2798315), (520, 2669162), (620, 2238652), (806, 1722040), (1040, 1334581), (1240, 1119326), (1612, 861020), (2015, 688816), (2480, 559663), (3224, 430510), (4030, 344408), (6448, 215255), (8060, 172204), (16120, 86102), (32240, 43051)]