16481420

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1619}}^1$

素因数の和:2137

約数の個数: 24

約数和(自身を含む): 34700400

約数和(自身を除く): 18218980

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 1619, 2036, 2545, 3238, 5090, 6476, 8095, 10180, 16190, 32380, 824071, 1648142, 3296284, 4120355, 8240710, 16481420]

約数ペア:

[(1, 16481420), (2, 8240710), (4, 4120355), (5, 3296284), (10, 1648142), (20, 824071), (509, 32380), (1018, 16190), (1619, 10180), (2036, 8095), (2545, 6476), (3238, 5090)]