15888971950

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{71363}}^1$

素因数の和:71509

約数の個数: 48

約数和(自身を含む): 30449876976

約数和(自身を除く): 14560905026

約数列:

[1, 2, 5, 10, 25, 50, 61, 73, 122, 146, 305, 365, 610, 730, 1525, 1825, 3050, 3650, 4453, 8906, 22265, 44530, 71363, 111325, 142726, 222650, 356815, 713630, 1784075, 3568150, 4353143, 5209499, 8706286, 10418998, 21765715, 26047495, 43531430, 52094990, 108828575, 130237475, 217657150, 260474950, 317779439, 635558878, 1588897195, 3177794390, 7944485975, 15888971950]

約数ペア:

[(1, 15888971950), (2, 7944485975), (5, 3177794390), (10, 1588897195), (25, 635558878), (50, 317779439), (61, 260474950), (73, 217657150), (122, 130237475), (146, 108828575), (305, 52094990), (365, 43531430), (610, 26047495), (730, 21765715), (1525, 10418998), (1825, 8706286), (3050, 5209499), (3650, 4353143), (4453, 3568150), (8906, 1784075), (22265, 713630), (44530, 356815), (71363, 222650), (111325, 142726)]