420032920

素因数分解:

$2^3\times 5^1\times {\mathrm{577}}^1\times {\mathrm{18199}}^1$

素因数の和:18787

約数の個数: 32

約数和(自身を含む): 946764000

約数和(自身を除く): 526731080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 577, 1154, 2308, 2885, 4616, 5770, 11540, 18199, 23080, 36398, 72796, 90995, 145592, 181990, 363980, 727960, 10500823, 21001646, 42003292, 52504115, 84006584, 105008230, 210016460, 420032920]

約数ペア:

[(1, 420032920), (2, 210016460), (4, 105008230), (5, 84006584), (8, 52504115), (10, 42003292), (20, 21001646), (40, 10500823), (577, 727960), (1154, 363980), (2308, 181990), (2885, 145592), (4616, 90995), (5770, 72796), (11540, 36398), (18199, 23080)]