39936875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:225

約数の個数: 40

約数和(自身を含む): 56269488

約数和(自身を除く): 16332613

約数列:

[1, 5, 11, 25, 37, 55, 125, 157, 185, 275, 407, 625, 785, 925, 1375, 1727, 2035, 3925, 4625, 5809, 6875, 8635, 10175, 19625, 23125, 29045, 43175, 50875, 63899, 98125, 145225, 215875, 254375, 319495, 726125, 1079375, 1597475, 3630625, 7987375, 39936875]

約数ペア:

[(1, 39936875), (5, 7987375), (11, 3630625), (25, 1597475), (37, 1079375), (55, 726125), (125, 319495), (157, 254375), (185, 215875), (275, 145225), (407, 98125), (625, 63899), (785, 50875), (925, 43175), (1375, 29045), (1727, 23125), (2035, 19625), (3925, 10175), (4625, 8635), (5809, 6875)]