489348560

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{23801}}^1$

素因数の和:24071

約数の個数: 40

約数和(自身を含む): 1142210376

約数和(自身を除く): 652861816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 2056, 2570, 4112, 5140, 10280, 20560, 23801, 47602, 95204, 119005, 190408, 238010, 380816, 476020, 952040, 1904080, 6116857, 12233714, 24467428, 30584285, 48934856, 61168570, 97869712, 122337140, 244674280, 489348560]

約数ペア:

[(1, 489348560), (2, 244674280), (4, 122337140), (5, 97869712), (8, 61168570), (10, 48934856), (16, 30584285), (20, 24467428), (40, 12233714), (80, 6116857), (257, 1904080), (514, 952040), (1028, 476020), (1285, 380816), (2056, 238010), (2570, 190408), (4112, 119005), (5140, 95204), (10280, 47602), (20560, 23801)]