16741640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^2\times {\mathrm{149}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 38650500

約数和(自身を除く): 21908860

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 149, 212, 265, 298, 424, 530, 596, 745, 1060, 1192, 1490, 2120, 2809, 2980, 5618, 5960, 7897, 11236, 14045, 15794, 22472, 28090, 31588, 39485, 56180, 63176, 78970, 112360, 157940, 315880, 418541, 837082, 1674164, 2092705, 3348328, 4185410, 8370820, 16741640]

約数ペア:

[(1, 16741640), (2, 8370820), (4, 4185410), (5, 3348328), (8, 2092705), (10, 1674164), (20, 837082), (40, 418541), (53, 315880), (106, 157940), (149, 112360), (212, 78970), (265, 63176), (298, 56180), (424, 39485), (530, 31588), (596, 28090), (745, 22472), (1060, 15794), (1192, 14045), (1490, 11236), (2120, 7897), (2809, 5960), (2980, 5618)]