80892520

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{11173}}^1$

素因数の和:11365

約数の個数: 32

約数和(自身を含む): 183030120

約数和(自身を除く): 102137600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 7240, 11173, 22346, 44692, 55865, 89384, 111730, 223460, 446920, 2022313, 4044626, 8089252, 10111565, 16178504, 20223130, 40446260, 80892520]

約数ペア:

[(1, 80892520), (2, 40446260), (4, 20223130), (5, 16178504), (8, 10111565), (10, 8089252), (20, 4044626), (40, 2022313), (181, 446920), (362, 223460), (724, 111730), (905, 89384), (1448, 55865), (1810, 44692), (3620, 22346), (7240, 11173)]