80353880

素因数分解:

$2^3\times 5^1\times {\mathrm{811}}^1\times {\mathrm{2477}}^1$

素因数の和:3299

約数の個数: 32

約数和(自身を含む): 181092240

約数和(自身を除く): 100738360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 811, 1622, 2477, 3244, 4055, 4954, 6488, 8110, 9908, 12385, 16220, 19816, 24770, 32440, 49540, 99080, 2008847, 4017694, 8035388, 10044235, 16070776, 20088470, 40176940, 80353880]

約数ペア:

[(1, 80353880), (2, 40176940), (4, 20088470), (5, 16070776), (8, 10044235), (10, 8035388), (20, 4017694), (40, 2008847), (811, 99080), (1622, 49540), (2477, 32440), (3244, 24770), (4055, 19816), (4954, 16220), (6488, 12385), (8110, 9908)]