31984040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{463}}^1$

素因数の和:642

約数の個数: 64

約数和(自身を含む): 79176960

約数和(自身を除く): 47192920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 157, 220, 314, 440, 463, 628, 785, 926, 1256, 1570, 1727, 1852, 2315, 3140, 3454, 3704, 4630, 5093, 6280, 6908, 8635, 9260, 10186, 13816, 17270, 18520, 20372, 25465, 34540, 40744, 50930, 69080, 72691, 101860, 145382, 203720, 290764, 363455, 581528, 726910, 799601, 1453820, 1599202, 2907640, 3198404, 3998005, 6396808, 7996010, 15992020, 31984040]

約数ペア:

[(1, 31984040), (2, 15992020), (4, 7996010), (5, 6396808), (8, 3998005), (10, 3198404), (11, 2907640), (20, 1599202), (22, 1453820), (40, 799601), (44, 726910), (55, 581528), (88, 363455), (110, 290764), (157, 203720), (220, 145382), (314, 101860), (440, 72691), (463, 69080), (628, 50930), (785, 40744), (926, 34540), (1256, 25465), (1570, 20372), (1727, 18520), (1852, 17270), (2315, 13816), (3140, 10186), (3454, 9260), (3704, 8635), (4630, 6908), (5093, 6280)]