80445540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{191537}}^1$

素因数の和:191556

約数の個数: 48

約数和(自身を含む): 257427072

約数和(自身を除く): 176981532

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 191537, 383074, 574611, 766148, 957685, 1149222, 1340759, 1915370, 2298444, 2681518, 2873055, 3830740, 4022277, 5363036, 5746110, 6703795, 8044554, 11492220, 13407590, 16089108, 20111385, 26815180, 40222770, 80445540]

約数ペア:

[(1, 80445540), (2, 40222770), (3, 26815180), (4, 20111385), (5, 16089108), (6, 13407590), (7, 11492220), (10, 8044554), (12, 6703795), (14, 5746110), (15, 5363036), (20, 4022277), (21, 3830740), (28, 2873055), (30, 2681518), (35, 2298444), (42, 1915370), (60, 1340759), (70, 1149222), (84, 957685), (105, 766148), (140, 574611), (210, 383074), (420, 191537)]