31528240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12713}}^1$

素因数の和:12757

約数の個数: 40

約数和(自身を含む): 75673728

約数和(自身を除く): 44145488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 12713, 25426, 50852, 63565, 101704, 127130, 203408, 254260, 394103, 508520, 788206, 1017040, 1576412, 1970515, 3152824, 3941030, 6305648, 7882060, 15764120, 31528240]

約数ペア:

[(1, 31528240), (2, 15764120), (4, 7882060), (5, 6305648), (8, 3941030), (10, 3152824), (16, 1970515), (20, 1576412), (31, 1017040), (40, 788206), (62, 508520), (80, 394103), (124, 254260), (155, 203408), (248, 127130), (310, 101704), (496, 63565), (620, 50852), (1240, 25426), (2480, 12713)]