20258480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23021}}^1$

素因数の和:23045

約数の個数: 40

約数和(自身を含む): 51385104

約数和(自身を除く): 31126624

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 23021, 46042, 92084, 115105, 184168, 230210, 253231, 368336, 460420, 506462, 920840, 1012924, 1266155, 1841680, 2025848, 2532310, 4051696, 5064620, 10129240, 20258480]

約数ペア:

[(1, 20258480), (2, 10129240), (4, 5064620), (5, 4051696), (8, 2532310), (10, 2025848), (11, 1841680), (16, 1266155), (20, 1012924), (22, 920840), (40, 506462), (44, 460420), (55, 368336), (80, 253231), (88, 230210), (110, 184168), (176, 115105), (220, 92084), (440, 46042), (880, 23021)]