389365240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{884921}}^1$

素因数の和:884943

約数の個数: 32

約数和(自身を含む): 955715760

約数和(自身を除く): 566350520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 884921, 1769842, 3539684, 4424605, 7079368, 8849210, 9734131, 17698420, 19468262, 35396840, 38936524, 48670655, 77873048, 97341310, 194682620, 389365240]

約数ペア:

[(1, 389365240), (2, 194682620), (4, 97341310), (5, 77873048), (8, 48670655), (10, 38936524), (11, 35396840), (20, 19468262), (22, 17698420), (40, 9734131), (44, 8849210), (55, 7079368), (88, 4424605), (110, 3539684), (220, 1769842), (440, 884921)]