80193520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{91129}}^1$

素因数の和:91153

約数の個数: 40

約数和(自身を含む): 203402160

約数和(自身を除く): 123208640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 91129, 182258, 364516, 455645, 729032, 911290, 1002419, 1458064, 1822580, 2004838, 3645160, 4009676, 5012095, 7290320, 8019352, 10024190, 16038704, 20048380, 40096760, 80193520]

約数ペア:

[(1, 80193520), (2, 40096760), (4, 20048380), (5, 16038704), (8, 10024190), (10, 8019352), (11, 7290320), (16, 5012095), (20, 4009676), (22, 3645160), (40, 2004838), (44, 1822580), (55, 1458064), (80, 1002419), (88, 911290), (110, 729032), (176, 455645), (220, 364516), (440, 182258), (880, 91129)]