201395875

素因数分解:

$5^3\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{421}}^1$

素因数の和:568

約数の個数: 32

約数和(自身を含む): 260694720

約数和(自身を除く): 59298845

約数列:

[1, 5, 25, 43, 89, 125, 215, 421, 445, 1075, 2105, 2225, 3827, 5375, 10525, 11125, 18103, 19135, 37469, 52625, 90515, 95675, 187345, 452575, 478375, 936725, 1611167, 2262875, 4683625, 8055835, 40279175, 201395875]

約数ペア:

[(1, 201395875), (5, 40279175), (25, 8055835), (43, 4683625), (89, 2262875), (125, 1611167), (215, 936725), (421, 478375), (445, 452575), (1075, 187345), (2105, 95675), (2225, 90515), (3827, 52625), (5375, 37469), (10525, 19135), (11125, 18103)]