206780720

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{26647}}^1$

素因数の和:26757

約数の個数: 40

約数和(自身を含む): 485739744

約数和(自身を除く): 278959024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 26647, 53294, 106588, 133235, 213176, 266470, 426352, 532940, 1065880, 2131760, 2584759, 5169518, 10339036, 12923795, 20678072, 25847590, 41356144, 51695180, 103390360, 206780720]

約数ペア:

[(1, 206780720), (2, 103390360), (4, 51695180), (5, 41356144), (8, 25847590), (10, 20678072), (16, 12923795), (20, 10339036), (40, 5169518), (80, 2584759), (97, 2131760), (194, 1065880), (388, 532940), (485, 426352), (776, 266470), (970, 213176), (1552, 133235), (1940, 106588), (3880, 53294), (7760, 26647)]