18486520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{487}}^1$

素因数の和:584

約数の個数: 64

約数和(自身を含む): 45501120

約数和(自身を除く): 27014600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 73, 104, 130, 146, 260, 292, 365, 487, 520, 584, 730, 949, 974, 1460, 1898, 1948, 2435, 2920, 3796, 3896, 4745, 4870, 6331, 7592, 9490, 9740, 12662, 18980, 19480, 25324, 31655, 35551, 37960, 50648, 63310, 71102, 126620, 142204, 177755, 253240, 284408, 355510, 462163, 711020, 924326, 1422040, 1848652, 2310815, 3697304, 4621630, 9243260, 18486520]

約数ペア:

[(1, 18486520), (2, 9243260), (4, 4621630), (5, 3697304), (8, 2310815), (10, 1848652), (13, 1422040), (20, 924326), (26, 711020), (40, 462163), (52, 355510), (65, 284408), (73, 253240), (104, 177755), (130, 142204), (146, 126620), (260, 71102), (292, 63310), (365, 50648), (487, 37960), (520, 35551), (584, 31655), (730, 25324), (949, 19480), (974, 18980), (1460, 12662), (1898, 9740), (1948, 9490), (2435, 7592), (2920, 6331), (3796, 4870), (3896, 4745)]