15209960

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:330

約数の個数: 64

約数和(自身を含む): 36115200

約数和(自身を除く): 20905240

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 43, 74, 86, 148, 172, 185, 215, 239, 296, 344, 370, 430, 478, 740, 860, 956, 1195, 1480, 1591, 1720, 1912, 2390, 3182, 4780, 6364, 7955, 8843, 9560, 10277, 12728, 15910, 17686, 20554, 31820, 35372, 41108, 44215, 51385, 63640, 70744, 82216, 88430, 102770, 176860, 205540, 353720, 380249, 411080, 760498, 1520996, 1901245, 3041992, 3802490, 7604980, 15209960]

約数ペア:

[(1, 15209960), (2, 7604980), (4, 3802490), (5, 3041992), (8, 1901245), (10, 1520996), (20, 760498), (37, 411080), (40, 380249), (43, 353720), (74, 205540), (86, 176860), (148, 102770), (172, 88430), (185, 82216), (215, 70744), (239, 63640), (296, 51385), (344, 44215), (370, 41108), (430, 35372), (478, 31820), (740, 20554), (860, 17686), (956, 15910), (1195, 12728), (1480, 10277), (1591, 9560), (1720, 8843), (1912, 7955), (2390, 6364), (3182, 4780)]