65087500

素因数分解:

$2^2\times 5^5\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 146990592

約数和(自身を除く): 81903092

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 127, 164, 205, 250, 254, 410, 500, 508, 625, 635, 820, 1025, 1250, 1270, 2050, 2500, 2540, 3125, 3175, 4100, 5125, 5207, 6250, 6350, 10250, 10414, 12500, 12700, 15875, 20500, 20828, 25625, 26035, 31750, 51250, 52070, 63500, 79375, 102500, 104140, 128125, 130175, 158750, 256250, 260350, 317500, 396875, 512500, 520700, 650875, 793750, 1301750, 1587500, 2603500, 3254375, 6508750, 13017500, 16271875, 32543750, 65087500]

約数ペア:

[(1, 65087500), (2, 32543750), (4, 16271875), (5, 13017500), (10, 6508750), (20, 3254375), (25, 2603500), (41, 1587500), (50, 1301750), (82, 793750), (100, 650875), (125, 520700), (127, 512500), (164, 396875), (205, 317500), (250, 260350), (254, 256250), (410, 158750), (500, 130175), (508, 128125), (625, 104140), (635, 102500), (820, 79375), (1025, 63500), (1250, 52070), (1270, 51250), (2050, 31750), (2500, 26035), (2540, 25625), (3125, 20828), (3175, 20500), (4100, 15875), (5125, 12700), (5207, 12500), (6250, 10414), (6350, 10250)]