31173140

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 67314240

約数和(自身を除く): 36141100

約数列:

[1, 2, 4, 5, 10, 20, 83, 89, 166, 178, 211, 332, 356, 415, 422, 445, 830, 844, 890, 1055, 1660, 1780, 2110, 4220, 7387, 14774, 17513, 18779, 29548, 35026, 36935, 37558, 70052, 73870, 75116, 87565, 93895, 147740, 175130, 187790, 350260, 375580, 1558657, 3117314, 6234628, 7793285, 15586570, 31173140]

約数ペア:

[(1, 31173140), (2, 15586570), (4, 7793285), (5, 6234628), (10, 3117314), (20, 1558657), (83, 375580), (89, 350260), (166, 187790), (178, 175130), (211, 147740), (332, 93895), (356, 87565), (415, 75116), (422, 73870), (445, 70052), (830, 37558), (844, 36935), (890, 35026), (1055, 29548), (1660, 18779), (1780, 17513), (2110, 14774), (4220, 7387)]