690806875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1129}}^1$

素因数の和:1249

約数の個数: 40

約数和(自身を含む): 953132400

約数和(自身を除く): 262325525

約数列:

[1, 5, 11, 25, 55, 89, 125, 275, 445, 625, 979, 1129, 1375, 2225, 4895, 5645, 6875, 11125, 12419, 24475, 28225, 55625, 62095, 100481, 122375, 141125, 310475, 502405, 611875, 705625, 1105291, 1552375, 2512025, 5526455, 7761875, 12560125, 27632275, 62800625, 138161375, 690806875]

約数ペア:

[(1, 690806875), (5, 138161375), (11, 62800625), (25, 27632275), (55, 12560125), (89, 7761875), (125, 5526455), (275, 2512025), (445, 1552375), (625, 1105291), (979, 705625), (1129, 611875), (1375, 502405), (2225, 310475), (4895, 141125), (5645, 122375), (6875, 100481), (11125, 62095), (12419, 55625), (24475, 28225)]