12499240

素因数分解:

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

素因数の和:123

約数の個数: 72

約数和(自身を含む): 31177710

約数和(自身を除く): 18678470

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 169, 172, 215, 260, 338, 344, 430, 520, 559, 676, 845, 860, 1118, 1352, 1690, 1720, 1849, 2236, 2795, 3380, 3698, 4472, 5590, 6760, 7267, 7396, 9245, 11180, 14534, 14792, 18490, 22360, 24037, 29068, 36335, 36980, 48074, 58136, 72670, 73960, 96148, 120185, 145340, 192296, 240370, 290680, 312481, 480740, 624962, 961480, 1249924, 1562405, 2499848, 3124810, 6249620, 12499240]

約数ペア:

[(1, 12499240), (2, 6249620), (4, 3124810), (5, 2499848), (8, 1562405), (10, 1249924), (13, 961480), (20, 624962), (26, 480740), (40, 312481), (43, 290680), (52, 240370), (65, 192296), (86, 145340), (104, 120185), (130, 96148), (169, 73960), (172, 72670), (215, 58136), (260, 48074), (338, 36980), (344, 36335), (430, 29068), (520, 24037), (559, 22360), (676, 18490), (845, 14792), (860, 14534), (1118, 11180), (1352, 9245), (1690, 7396), (1720, 7267), (1849, 6760), (2236, 5590), (2795, 4472), (3380, 3698)]