81003680

素因数分解:

$2^5\times 5^1\times {\mathrm{347}}^1\times {\mathrm{1459}}^1$

素因数の和:1821

約数の個数: 48

約数和(自身を含む): 192054240

約数和(自身を除く): 111050560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 347, 694, 1388, 1459, 1735, 2776, 2918, 3470, 5552, 5836, 6940, 7295, 11104, 11672, 13880, 14590, 23344, 27760, 29180, 46688, 55520, 58360, 116720, 233440, 506273, 1012546, 2025092, 2531365, 4050184, 5062730, 8100368, 10125460, 16200736, 20250920, 40501840, 81003680]

約数ペア:

[(1, 81003680), (2, 40501840), (4, 20250920), (5, 16200736), (8, 10125460), (10, 8100368), (16, 5062730), (20, 4050184), (32, 2531365), (40, 2025092), (80, 1012546), (160, 506273), (347, 233440), (694, 116720), (1388, 58360), (1459, 55520), (1735, 46688), (2776, 29180), (2918, 27760), (3470, 23344), (5552, 14590), (5836, 13880), (6940, 11672), (7295, 11104)]