28354780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{229}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 61669440

約数和(自身を除く): 33314660

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 151, 164, 205, 229, 302, 410, 458, 604, 755, 820, 916, 1145, 1510, 2290, 3020, 4580, 6191, 9389, 12382, 18778, 24764, 30955, 34579, 37556, 46945, 61910, 69158, 93890, 123820, 138316, 172895, 187780, 345790, 691580, 1417739, 2835478, 5670956, 7088695, 14177390, 28354780]

約数ペア:

[(1, 28354780), (2, 14177390), (4, 7088695), (5, 5670956), (10, 2835478), (20, 1417739), (41, 691580), (82, 345790), (151, 187780), (164, 172895), (205, 138316), (229, 123820), (302, 93890), (410, 69158), (458, 61910), (604, 46945), (755, 37556), (820, 34579), (916, 30955), (1145, 24764), (1510, 18778), (2290, 12382), (3020, 9389), (4580, 6191)]