395451875

素因数分解:

$5^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1$

素因数の和:466

約数の個数: 80

約数和(自身を含む): 645543360

約数和(自身を除く): 250091485

約数列:

[1, 5, 7, 13, 17, 25, 35, 65, 85, 91, 119, 125, 175, 221, 325, 409, 425, 455, 595, 625, 875, 1105, 1547, 1625, 2045, 2125, 2275, 2863, 2975, 4375, 5317, 5525, 6953, 7735, 8125, 10225, 10625, 11375, 14315, 14875, 26585, 27625, 34765, 37219, 38675, 48671, 51125, 56875, 71575, 74375, 90389, 132925, 138125, 173825, 186095, 193375, 243355, 255625, 357875, 451945, 632723, 664625, 869125, 930475, 966875, 1216775, 1789375, 2259725, 3163615, 3323125, 4345625, 4652375, 6083875, 11298625, 15818075, 23261875, 30419375, 56493125, 79090375, 395451875]

約数ペア:

[(1, 395451875), (5, 79090375), (7, 56493125), (13, 30419375), (17, 23261875), (25, 15818075), (35, 11298625), (65, 6083875), (85, 4652375), (91, 4345625), (119, 3323125), (125, 3163615), (175, 2259725), (221, 1789375), (325, 1216775), (409, 966875), (425, 930475), (455, 869125), (595, 664625), (625, 632723), (875, 451945), (1105, 357875), (1547, 255625), (1625, 243355), (2045, 193375), (2125, 186095), (2275, 173825), (2863, 138125), (2975, 132925), (4375, 90389), (5317, 74375), (5525, 71575), (6953, 56875), (7735, 51125), (8125, 48671), (10225, 38675), (10625, 37219), (11375, 34765), (14315, 27625), (14875, 26585)]