31397660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1637}}^1$

素因数の和:1790

約数の個数: 48

約数和(自身を含む): 75950784

約数和(自身を除く): 44553124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 548, 685, 959, 1370, 1637, 1918, 2740, 3274, 3836, 4795, 6548, 8185, 9590, 11459, 16370, 19180, 22918, 32740, 45836, 57295, 114590, 224269, 229180, 448538, 897076, 1121345, 1569883, 2242690, 3139766, 4485380, 6279532, 7849415, 15698830, 31397660]

約数ペア:

[(1, 31397660), (2, 15698830), (4, 7849415), (5, 6279532), (7, 4485380), (10, 3139766), (14, 2242690), (20, 1569883), (28, 1121345), (35, 897076), (70, 448538), (137, 229180), (140, 224269), (274, 114590), (548, 57295), (685, 45836), (959, 32740), (1370, 22918), (1637, 19180), (1918, 16370), (2740, 11459), (3274, 9590), (3836, 8185), (4795, 6548)]