31137160

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{421}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 71896140

約数和(自身を除く): 40758980

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 421, 430, 842, 860, 1684, 1720, 1849, 2105, 3368, 3698, 4210, 7396, 8420, 9245, 14792, 16840, 18103, 18490, 36206, 36980, 72412, 73960, 90515, 144824, 181030, 362060, 724120, 778429, 1556858, 3113716, 3892145, 6227432, 7784290, 15568580, 31137160]

約数ペア:

[(1, 31137160), (2, 15568580), (4, 7784290), (5, 6227432), (8, 3892145), (10, 3113716), (20, 1556858), (40, 778429), (43, 724120), (86, 362060), (172, 181030), (215, 144824), (344, 90515), (421, 73960), (430, 72412), (842, 36980), (860, 36206), (1684, 18490), (1720, 18103), (1849, 16840), (2105, 14792), (3368, 9245), (3698, 8420), (4210, 7396)]