20458375

素因数分解:

$5^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{227}}^1$

素因数の和:352

約数の個数: 32

約数和(自身を含む): 29592576

約数和(自身を除く): 9134201

約数列:

[1, 5, 7, 25, 35, 103, 125, 175, 227, 515, 721, 875, 1135, 1589, 2575, 3605, 5675, 7945, 12875, 18025, 23381, 28375, 39725, 90125, 116905, 163667, 198625, 584525, 818335, 2922625, 4091675, 20458375]

約数ペア:

[(1, 20458375), (5, 4091675), (7, 2922625), (25, 818335), (35, 584525), (103, 198625), (125, 163667), (175, 116905), (227, 90125), (515, 39725), (721, 28375), (875, 23381), (1135, 18025), (1589, 12875), (2575, 7945), (3605, 5675)]