31145920

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7487}}^1$

素因数の和:7517

約数の個数: 56

約数和(自身を含む): 79881984

約数和(自身を除く): 48736064

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 7487, 14974, 29948, 37435, 59896, 74870, 97331, 119792, 149740, 194662, 239584, 299480, 389324, 479168, 486655, 598960, 778648, 973310, 1197920, 1557296, 1946620, 2395840, 3114592, 3893240, 6229184, 7786480, 15572960, 31145920]

約数ペア:

[(1, 31145920), (2, 15572960), (4, 7786480), (5, 6229184), (8, 3893240), (10, 3114592), (13, 2395840), (16, 1946620), (20, 1557296), (26, 1197920), (32, 973310), (40, 778648), (52, 598960), (64, 486655), (65, 479168), (80, 389324), (104, 299480), (130, 239584), (160, 194662), (208, 149740), (260, 119792), (320, 97331), (416, 74870), (520, 59896), (832, 37435), (1040, 29948), (2080, 14974), (4160, 7487)]