90786920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{324239}}^1$

素因数の和:324257

約数の個数: 32

約数和(自身を含む): 233452800

約数和(自身を除く): 142665880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 324239, 648478, 1296956, 1621195, 2269673, 2593912, 3242390, 4539346, 6484780, 9078692, 11348365, 12969560, 18157384, 22696730, 45393460, 90786920]

約数ペア:

[(1, 90786920), (2, 45393460), (4, 22696730), (5, 18157384), (7, 12969560), (8, 11348365), (10, 9078692), (14, 6484780), (20, 4539346), (28, 3242390), (35, 2593912), (40, 2269673), (56, 1621195), (70, 1296956), (140, 648478), (280, 324239)]