31788760

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{317}}^1$

素因数の和:460

約数の個数: 64

約数和(自身を含む): 75556800

約数和(自身を除く): 43768040

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 109, 115, 184, 218, 230, 317, 436, 460, 545, 634, 872, 920, 1090, 1268, 1585, 2180, 2507, 2536, 3170, 4360, 5014, 6340, 7291, 10028, 12535, 12680, 14582, 20056, 25070, 29164, 34553, 36455, 50140, 58328, 69106, 72910, 100280, 138212, 145820, 172765, 276424, 291640, 345530, 691060, 794719, 1382120, 1589438, 3178876, 3973595, 6357752, 7947190, 15894380, 31788760]

約数ペア:

[(1, 31788760), (2, 15894380), (4, 7947190), (5, 6357752), (8, 3973595), (10, 3178876), (20, 1589438), (23, 1382120), (40, 794719), (46, 691060), (92, 345530), (109, 291640), (115, 276424), (184, 172765), (218, 145820), (230, 138212), (317, 100280), (436, 72910), (460, 69106), (545, 58328), (634, 50140), (872, 36455), (920, 34553), (1090, 29164), (1268, 25070), (1585, 20056), (2180, 14582), (2507, 12680), (2536, 12535), (3170, 10028), (4360, 7291), (5014, 6340)]