31248100

素因数分解:

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

素因数の和:126

約数の個数: 81

約数和(自身を含む): 75172923

約数和(自身を除く): 43924823

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 43, 50, 52, 65, 86, 100, 130, 169, 172, 215, 260, 325, 338, 430, 559, 650, 676, 845, 860, 1075, 1118, 1300, 1690, 1849, 2150, 2236, 2795, 3380, 3698, 4225, 4300, 5590, 7267, 7396, 8450, 9245, 11180, 13975, 14534, 16900, 18490, 24037, 27950, 29068, 36335, 36980, 46225, 48074, 55900, 72670, 92450, 96148, 120185, 145340, 181675, 184900, 240370, 312481, 363350, 480740, 600925, 624962, 726700, 1201850, 1249924, 1562405, 2403700, 3124810, 6249620, 7812025, 15624050, 31248100]

約数ペア:

[(1, 31248100), (2, 15624050), (4, 7812025), (5, 6249620), (10, 3124810), (13, 2403700), (20, 1562405), (25, 1249924), (26, 1201850), (43, 726700), (50, 624962), (52, 600925), (65, 480740), (86, 363350), (100, 312481), (130, 240370), (169, 184900), (172, 181675), (215, 145340), (260, 120185), (325, 96148), (338, 92450), (430, 72670), (559, 55900), (650, 48074), (676, 46225), (845, 36980), (860, 36335), (1075, 29068), (1118, 27950), (1300, 24037), (1690, 18490), (1849, 16900), (2150, 14534), (2236, 13975), (2795, 11180), (3380, 9245), (3698, 8450), (4225, 7396), (4300, 7267)]