7803640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:416

約数の個数: 64

約数和(自身を含む): 19404000

約数和(自身を除く): 11600360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 349, 430, 520, 559, 698, 860, 1118, 1396, 1720, 1745, 2236, 2792, 2795, 3490, 4472, 4537, 5590, 6980, 9074, 11180, 13960, 15007, 18148, 22360, 22685, 30014, 36296, 45370, 60028, 75035, 90740, 120056, 150070, 181480, 195091, 300140, 390182, 600280, 780364, 975455, 1560728, 1950910, 3901820, 7803640]

約数ペア:

[(1, 7803640), (2, 3901820), (4, 1950910), (5, 1560728), (8, 975455), (10, 780364), (13, 600280), (20, 390182), (26, 300140), (40, 195091), (43, 181480), (52, 150070), (65, 120056), (86, 90740), (104, 75035), (130, 60028), (172, 45370), (215, 36296), (260, 30014), (344, 22685), (349, 22360), (430, 18148), (520, 15007), (559, 13960), (698, 11180), (860, 9074), (1118, 6980), (1396, 5590), (1720, 4537), (1745, 4472), (2236, 3490), (2792, 2795)]