87820305

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{419}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 143337600

約数和(自身を除く): 55517295

約数列:

[1, 3, 5, 15, 89, 157, 267, 419, 445, 471, 785, 1257, 1335, 2095, 2355, 6285, 13973, 37291, 41919, 65783, 69865, 111873, 186455, 197349, 209595, 328915, 559365, 986745, 5854687, 17564061, 29273435, 87820305]

約数ペア:

[(1, 87820305), (3, 29273435), (5, 17564061), (15, 5854687), (89, 986745), (157, 559365), (267, 328915), (419, 209595), (445, 197349), (471, 186455), (785, 111873), (1257, 69865), (1335, 65783), (2095, 41919), (2355, 37291), (6285, 13973)]