80940780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{449671}}^1$

素因数の和:449686

約数の個数: 36

約数和(自身を含む): 245520912

約数和(自身を除く): 164580132

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 449671, 899342, 1349013, 1798684, 2248355, 2698026, 4047039, 4496710, 5396052, 6745065, 8094078, 8993420, 13490130, 16188156, 20235195, 26980260, 40470390, 80940780]

約数ペア:

[(1, 80940780), (2, 40470390), (3, 26980260), (4, 20235195), (5, 16188156), (6, 13490130), (9, 8993420), (10, 8094078), (12, 6745065), (15, 5396052), (18, 4496710), (20, 4047039), (30, 2698026), (36, 2248355), (45, 1798684), (60, 1349013), (90, 899342), (180, 449671)]