203715920

素因数分解:

$2^4\times 5^1\times {\mathrm{563}}^1\times {\mathrm{4523}}^1$

素因数の和:5099

約数の個数: 40

約数和(自身を含む): 474585696

約数和(自身を除く): 270869776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 563, 1126, 2252, 2815, 4504, 4523, 5630, 9008, 9046, 11260, 18092, 22520, 22615, 36184, 45040, 45230, 72368, 90460, 180920, 361840, 2546449, 5092898, 10185796, 12732245, 20371592, 25464490, 40743184, 50928980, 101857960, 203715920]

約数ペア:

[(1, 203715920), (2, 101857960), (4, 50928980), (5, 40743184), (8, 25464490), (10, 20371592), (16, 12732245), (20, 10185796), (40, 5092898), (80, 2546449), (563, 361840), (1126, 180920), (2252, 90460), (2815, 72368), (4504, 45230), (4523, 45040), (5630, 36184), (9008, 22615), (9046, 22520), (11260, 18092)]