18323720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11173}}^1$

素因数の和:11225

約数の個数: 32

約数和(自身を含む): 42237720

約数和(自身を除く): 23914000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 11173, 22346, 44692, 55865, 89384, 111730, 223460, 446920, 458093, 916186, 1832372, 2290465, 3664744, 4580930, 9161860, 18323720]

約数ペア:

[(1, 18323720), (2, 9161860), (4, 4580930), (5, 3664744), (8, 2290465), (10, 1832372), (20, 916186), (40, 458093), (41, 446920), (82, 223460), (164, 111730), (205, 89384), (328, 55865), (410, 44692), (820, 22346), (1640, 11173)]