9054980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{521}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 21047040

約数和(自身を除く): 11992060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 521, 790, 869, 1042, 1580, 1738, 2084, 2605, 3476, 4345, 5210, 5731, 8690, 10420, 11462, 17380, 22924, 28655, 41159, 57310, 82318, 114620, 164636, 205795, 411590, 452749, 823180, 905498, 1810996, 2263745, 4527490, 9054980]

約数ペア:

[(1, 9054980), (2, 4527490), (4, 2263745), (5, 1810996), (10, 905498), (11, 823180), (20, 452749), (22, 411590), (44, 205795), (55, 164636), (79, 114620), (110, 82318), (158, 57310), (220, 41159), (316, 28655), (395, 22924), (521, 17380), (790, 11462), (869, 10420), (1042, 8690), (1580, 5731), (1738, 5210), (2084, 4345), (2605, 3476)]