205477610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{761}}^1$

素因数の和:879

約数の個数: 64

約数和(自身を含む): 417844224

約数和(自身を除く): 212366614

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 67, 130, 134, 155, 310, 335, 403, 670, 761, 806, 871, 1522, 1742, 2015, 2077, 3805, 4030, 4154, 4355, 7610, 8710, 9893, 10385, 19786, 20770, 23591, 27001, 47182, 49465, 50987, 54002, 98930, 101974, 117955, 135005, 235910, 254935, 270010, 306683, 509870, 613366, 662831, 1325662, 1533415, 1580597, 3066830, 3161194, 3314155, 6628310, 7902985, 15805970, 20547761, 41095522, 102738805, 205477610]

約数ペア:

[(1, 205477610), (2, 102738805), (5, 41095522), (10, 20547761), (13, 15805970), (26, 7902985), (31, 6628310), (62, 3314155), (65, 3161194), (67, 3066830), (130, 1580597), (134, 1533415), (155, 1325662), (310, 662831), (335, 613366), (403, 509870), (670, 306683), (761, 270010), (806, 254935), (871, 235910), (1522, 135005), (1742, 117955), (2015, 101974), (2077, 98930), (3805, 54002), (4030, 50987), (4154, 49465), (4355, 47182), (7610, 27001), (8710, 23591), (9893, 20770), (10385, 19786)]