640570142

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1\times {\mathrm{1297}}^1$

素因数の和:1676

約数の個数: 32

約数和(自身を含む): 1040165280

約数和(自身を除く): 399595138

約数列:

[1, 2, 19, 38, 41, 82, 317, 634, 779, 1297, 1558, 2594, 6023, 12046, 12997, 24643, 25994, 49286, 53177, 106354, 246943, 411149, 493886, 822298, 1010363, 2020726, 7811831, 15623662, 16857109, 33714218, 320285071, 640570142]

約数ペア:

[(1, 640570142), (2, 320285071), (19, 33714218), (38, 16857109), (41, 15623662), (82, 7811831), (317, 2020726), (634, 1010363), (779, 822298), (1297, 493886), (1558, 411149), (2594, 246943), (6023, 106354), (12046, 53177), (12997, 49286), (24643, 25994)]