207965720

素因数分解:

$2^3\times 5^1\times {\mathrm{523}}^1\times {\mathrm{9941}}^1$

素因数の和:10475

約数の個数: 32

約数和(自身を含む): 468864720

約数和(自身を除く): 260899000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523, 1046, 2092, 2615, 4184, 5230, 9941, 10460, 19882, 20920, 39764, 49705, 79528, 99410, 198820, 397640, 5199143, 10398286, 20796572, 25995715, 41593144, 51991430, 103982860, 207965720]

約数ペア:

[(1, 207965720), (2, 103982860), (4, 51991430), (5, 41593144), (8, 25995715), (10, 20796572), (20, 10398286), (40, 5199143), (523, 397640), (1046, 198820), (2092, 99410), (2615, 79528), (4184, 49705), (5230, 39764), (9941, 20920), (10460, 19882)]