201215480

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{12671}}^1$

素因数の和:13079

約数の個数: 32

約数和(自身を含む): 453911040

約数和(自身を除く): 252695560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 7940, 12671, 15880, 25342, 50684, 63355, 101368, 126710, 253420, 506840, 5030387, 10060774, 20121548, 25151935, 40243096, 50303870, 100607740, 201215480]

約数ペア:

[(1, 201215480), (2, 100607740), (4, 50303870), (5, 40243096), (8, 25151935), (10, 20121548), (20, 10060774), (40, 5030387), (397, 506840), (794, 253420), (1588, 126710), (1985, 101368), (3176, 63355), (3970, 50684), (7940, 25342), (12671, 15880)]