80498920

素因数分解:

$2^3\times 5^1\times {\mathrm{769}}^1\times {\mathrm{2617}}^1$

素因数の和:3397

約数の個数: 32

約数和(自身を含む): 181427400

約数和(自身を除く): 100928480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 769, 1538, 2617, 3076, 3845, 5234, 6152, 7690, 10468, 13085, 15380, 20936, 26170, 30760, 52340, 104680, 2012473, 4024946, 8049892, 10062365, 16099784, 20124730, 40249460, 80498920]

約数ペア:

[(1, 80498920), (2, 40249460), (4, 20124730), (5, 16099784), (8, 10062365), (10, 8049892), (20, 4024946), (40, 2012473), (769, 104680), (1538, 52340), (2617, 30760), (3076, 26170), (3845, 20936), (5234, 15380), (6152, 13085), (7690, 10468)]