18533240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{577}}^1$

素因数の和:672

約数の個数: 64

約数和(自身を含む): 46193760

約数和(自身を除く): 27660520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 73, 88, 110, 146, 220, 292, 365, 440, 577, 584, 730, 803, 1154, 1460, 1606, 2308, 2885, 2920, 3212, 4015, 4616, 5770, 6347, 6424, 8030, 11540, 12694, 16060, 23080, 25388, 31735, 32120, 42121, 50776, 63470, 84242, 126940, 168484, 210605, 253880, 336968, 421210, 463331, 842420, 926662, 1684840, 1853324, 2316655, 3706648, 4633310, 9266620, 18533240]

約数ペア:

[(1, 18533240), (2, 9266620), (4, 4633310), (5, 3706648), (8, 2316655), (10, 1853324), (11, 1684840), (20, 926662), (22, 842420), (40, 463331), (44, 421210), (55, 336968), (73, 253880), (88, 210605), (110, 168484), (146, 126940), (220, 84242), (292, 63470), (365, 50776), (440, 42121), (577, 32120), (584, 31735), (730, 25388), (803, 23080), (1154, 16060), (1460, 12694), (1606, 11540), (2308, 8030), (2885, 6424), (2920, 6347), (3212, 5770), (4015, 4616)]