72444560

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{2281}}^1$

素因数の和:2691

約数の個数: 40

約数和(自身を含む): 168931896

約数和(自身を除く): 96487336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 794, 1588, 1985, 2281, 3176, 3970, 4562, 6352, 7940, 9124, 11405, 15880, 18248, 22810, 31760, 36496, 45620, 91240, 182480, 905557, 1811114, 3622228, 4527785, 7244456, 9055570, 14488912, 18111140, 36222280, 72444560]

約数ペア:

[(1, 72444560), (2, 36222280), (4, 18111140), (5, 14488912), (8, 9055570), (10, 7244456), (16, 4527785), (20, 3622228), (40, 1811114), (80, 905557), (397, 182480), (794, 91240), (1588, 45620), (1985, 36496), (2281, 31760), (3176, 22810), (3970, 18248), (4562, 15880), (6352, 11405), (7940, 9124)]