31417480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{19157}}^1$

素因数の和:19209

約数の個数: 32

約数和(自身を含む): 72417240

約数和(自身を除く): 40999760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 19157, 38314, 76628, 95785, 153256, 191570, 383140, 766280, 785437, 1570874, 3141748, 3927185, 6283496, 7854370, 15708740, 31417480]

約数ペア:

[(1, 31417480), (2, 15708740), (4, 7854370), (5, 6283496), (8, 3927185), (10, 3141748), (20, 1570874), (40, 785437), (41, 766280), (82, 383140), (164, 191570), (205, 153256), (328, 95785), (410, 76628), (820, 38314), (1640, 19157)]