20316625

素因数分解:

$5^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:167

約数の個数: 48

約数和(自身を含む): 30730752

約数和(自身を除く): 10414127

約数列:

[1, 5, 7, 25, 31, 35, 49, 107, 125, 155, 175, 217, 245, 535, 749, 775, 875, 1085, 1225, 1519, 2675, 3317, 3745, 3875, 5243, 5425, 6125, 7595, 13375, 16585, 18725, 23219, 26215, 27125, 37975, 82925, 93625, 116095, 131075, 162533, 189875, 414625, 580475, 655375, 812665, 2902375, 4063325, 20316625]

約数ペア:

[(1, 20316625), (5, 4063325), (7, 2902375), (25, 812665), (31, 655375), (35, 580475), (49, 414625), (107, 189875), (125, 162533), (155, 131075), (175, 116095), (217, 93625), (245, 82925), (535, 37975), (749, 27125), (775, 26215), (875, 23219), (1085, 18725), (1225, 16585), (1519, 13375), (2675, 7595), (3317, 6125), (3745, 5425), (3875, 5243)]