31136300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{557}}^1$

素因数の和:627

約数の個数: 72

約数和(自身を含む): 74588976

約数和(自身を除く): 43452676

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 43, 50, 52, 65, 86, 100, 130, 172, 215, 260, 325, 430, 557, 559, 650, 860, 1075, 1114, 1118, 1300, 2150, 2228, 2236, 2785, 2795, 4300, 5570, 5590, 7241, 11140, 11180, 13925, 13975, 14482, 23951, 27850, 27950, 28964, 36205, 47902, 55700, 55900, 72410, 95804, 119755, 144820, 181025, 239510, 311363, 362050, 479020, 598775, 622726, 724100, 1197550, 1245452, 1556815, 2395100, 3113630, 6227260, 7784075, 15568150, 31136300]

約数ペア:

[(1, 31136300), (2, 15568150), (4, 7784075), (5, 6227260), (10, 3113630), (13, 2395100), (20, 1556815), (25, 1245452), (26, 1197550), (43, 724100), (50, 622726), (52, 598775), (65, 479020), (86, 362050), (100, 311363), (130, 239510), (172, 181025), (215, 144820), (260, 119755), (325, 95804), (430, 72410), (557, 55900), (559, 55700), (650, 47902), (860, 36205), (1075, 28964), (1114, 27950), (1118, 27850), (1300, 23951), (2150, 14482), (2228, 13975), (2236, 13925), (2785, 11180), (2795, 11140), (4300, 7241), (5570, 5590)]