18658840

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3673}}^1$

素因数の和:3811

約数の個数: 32

約数和(自身を含む): 42324480

約数和(自身を除く): 23665640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 3673, 5080, 7346, 14692, 18365, 29384, 36730, 73460, 146920, 466471, 932942, 1865884, 2332355, 3731768, 4664710, 9329420, 18658840]

約数ペア:

[(1, 18658840), (2, 9329420), (4, 4664710), (5, 3731768), (8, 2332355), (10, 1865884), (20, 932942), (40, 466471), (127, 146920), (254, 73460), (508, 36730), (635, 29384), (1016, 18365), (1270, 14692), (2540, 7346), (3673, 5080)]