77215720

素因数分解:

$2^3\times 5^1\times {\mathrm{523}}^1\times {\mathrm{3691}}^1$

素因数の和:4225

約数の個数: 32

約数和(自身を含む): 174114720

約数和(自身を除く): 96899000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523, 1046, 2092, 2615, 3691, 4184, 5230, 7382, 10460, 14764, 18455, 20920, 29528, 36910, 73820, 147640, 1930393, 3860786, 7721572, 9651965, 15443144, 19303930, 38607860, 77215720]

約数ペア:

[(1, 77215720), (2, 38607860), (4, 19303930), (5, 15443144), (8, 9651965), (10, 7721572), (20, 3860786), (40, 1930393), (523, 147640), (1046, 73820), (2092, 36910), (2615, 29528), (3691, 20920), (4184, 18455), (5230, 14764), (7382, 10460)]