20162681720

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2816017}}^1$

素因数の和:2816207

約数の個数: 32

約数和(自身を含む): 45619491600

約数和(自身を除く): 25456809880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 3580, 7160, 2816017, 5632034, 11264068, 14080085, 22528136, 28160170, 56320340, 112640680, 504067043, 1008134086, 2016268172, 2520335215, 4032536344, 5040670430, 10081340860, 20162681720]

約数ペア:

[(1, 20162681720), (2, 10081340860), (4, 5040670430), (5, 4032536344), (8, 2520335215), (10, 2016268172), (20, 1008134086), (40, 504067043), (179, 112640680), (358, 56320340), (716, 28160170), (895, 22528136), (1432, 14080085), (1790, 11264068), (3580, 5632034), (7160, 2816017)]