201689080

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{7297}}^1$

素因数の和:7999

約数の個数: 32

約数和(自身を含む): 454519440

約数和(自身を除く): 252830360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 1382, 2764, 3455, 5528, 6910, 7297, 13820, 14594, 27640, 29188, 36485, 58376, 72970, 145940, 291880, 5042227, 10084454, 20168908, 25211135, 40337816, 50422270, 100844540, 201689080]

約数ペア:

[(1, 201689080), (2, 100844540), (4, 50422270), (5, 40337816), (8, 25211135), (10, 20168908), (20, 10084454), (40, 5042227), (691, 291880), (1382, 145940), (2764, 72970), (3455, 58376), (5528, 36485), (6910, 29188), (7297, 27640), (13820, 14594)]