31305870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2539}}^1$

素因数の和:2689

約数の個数: 48

約数和(自身を含む): 82021680

約数和(自身を除く): 50715810

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 137, 274, 411, 685, 822, 1233, 1370, 2055, 2466, 2539, 4110, 5078, 6165, 7617, 12330, 12695, 15234, 22851, 25390, 38085, 45702, 76170, 114255, 228510, 347843, 695686, 1043529, 1739215, 2087058, 3130587, 3478430, 5217645, 6261174, 10435290, 15652935, 31305870]

約数ペア:

[(1, 31305870), (2, 15652935), (3, 10435290), (5, 6261174), (6, 5217645), (9, 3478430), (10, 3130587), (15, 2087058), (18, 1739215), (30, 1043529), (45, 695686), (90, 347843), (137, 228510), (274, 114255), (411, 76170), (685, 45702), (822, 38085), (1233, 25390), (1370, 22851), (2055, 15234), (2466, 12695), (2539, 12330), (4110, 7617), (5078, 6165)]