31510830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1879}}^1$

素因数の和:1945

約数の個数: 64

約数和(自身を含む): 83381760

約数和(自身を除く): 51870930

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 43, 65, 78, 86, 129, 130, 195, 215, 258, 390, 430, 559, 645, 1118, 1290, 1677, 1879, 2795, 3354, 3758, 5590, 5637, 8385, 9395, 11274, 16770, 18790, 24427, 28185, 48854, 56370, 73281, 80797, 122135, 146562, 161594, 242391, 244270, 366405, 403985, 484782, 732810, 807970, 1050361, 1211955, 2100722, 2423910, 3151083, 5251805, 6302166, 10503610, 15755415, 31510830]

約数ペア:

[(1, 31510830), (2, 15755415), (3, 10503610), (5, 6302166), (6, 5251805), (10, 3151083), (13, 2423910), (15, 2100722), (26, 1211955), (30, 1050361), (39, 807970), (43, 732810), (65, 484782), (78, 403985), (86, 366405), (129, 244270), (130, 242391), (195, 161594), (215, 146562), (258, 122135), (390, 80797), (430, 73281), (559, 56370), (645, 48854), (1118, 28185), (1290, 24427), (1677, 18790), (1879, 16770), (2795, 11274), (3354, 9395), (3758, 8385), (5590, 5637)]