16226920

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{797}}^1$

素因数の和:1317

約数の個数: 32

約数和(自身を含む): 36628200

約数和(自身を除く): 20401280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 797, 1018, 1594, 2036, 2545, 3188, 3985, 4072, 5090, 6376, 7970, 10180, 15940, 20360, 31880, 405673, 811346, 1622692, 2028365, 3245384, 4056730, 8113460, 16226920]

約数ペア:

[(1, 16226920), (2, 8113460), (4, 4056730), (5, 3245384), (8, 2028365), (10, 1622692), (20, 811346), (40, 405673), (509, 31880), (797, 20360), (1018, 15940), (1594, 10180), (2036, 7970), (2545, 6376), (3188, 5090), (3985, 4072)]