18162320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20639}}^1$

素因数の和:20663

約数の個数: 40

約数和(自身を含む): 46068480

約数和(自身を除く): 27906160

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 20639, 41278, 82556, 103195, 165112, 206390, 227029, 330224, 412780, 454058, 825560, 908116, 1135145, 1651120, 1816232, 2270290, 3632464, 4540580, 9081160, 18162320]

約数ペア:

[(1, 18162320), (2, 9081160), (4, 4540580), (5, 3632464), (8, 2270290), (10, 1816232), (11, 1651120), (16, 1135145), (20, 908116), (22, 825560), (40, 454058), (44, 412780), (55, 330224), (80, 227029), (88, 206390), (110, 165112), (176, 103195), (220, 82556), (440, 41278), (880, 20639)]