257665830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{1367}}^1$

素因数の和:1541

約数の個数: 64

約数和(自身を含む): 635102208

約数和(自身を除く): 377436378

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 103, 122, 183, 206, 305, 309, 366, 515, 610, 618, 915, 1030, 1367, 1545, 1830, 2734, 3090, 4101, 6283, 6835, 8202, 12566, 13670, 18849, 20505, 31415, 37698, 41010, 62830, 83387, 94245, 140801, 166774, 188490, 250161, 281602, 416935, 422403, 500322, 704005, 833870, 844806, 1250805, 1408010, 2112015, 2501610, 4224030, 8588861, 17177722, 25766583, 42944305, 51533166, 85888610, 128832915, 257665830]

約数ペア:

[(1, 257665830), (2, 128832915), (3, 85888610), (5, 51533166), (6, 42944305), (10, 25766583), (15, 17177722), (30, 8588861), (61, 4224030), (103, 2501610), (122, 2112015), (183, 1408010), (206, 1250805), (305, 844806), (309, 833870), (366, 704005), (515, 500322), (610, 422403), (618, 416935), (915, 281602), (1030, 250161), (1367, 188490), (1545, 166774), (1830, 140801), (2734, 94245), (3090, 83387), (4101, 62830), (6283, 41010), (6835, 37698), (8202, 31415), (12566, 20505), (13670, 18849)]