39381875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:201

約数の個数: 40

約数和(自身を含む): 54844944

約数和(自身を除く): 15463069

約数列:

[1, 5, 13, 25, 37, 65, 125, 131, 185, 325, 481, 625, 655, 925, 1625, 1703, 2405, 3275, 4625, 4847, 8125, 8515, 12025, 16375, 23125, 24235, 42575, 60125, 63011, 81875, 121175, 212875, 300625, 315055, 605875, 1064375, 1575275, 3029375, 7876375, 39381875]

約数ペア:

[(1, 39381875), (5, 7876375), (13, 3029375), (25, 1575275), (37, 1064375), (65, 605875), (125, 315055), (131, 300625), (185, 212875), (325, 121175), (481, 81875), (625, 63011), (655, 60125), (925, 42575), (1625, 24235), (1703, 23125), (2405, 16375), (3275, 12025), (4625, 8515), (4847, 8125)]