161790660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{907}}^1\times {\mathrm{991}}^1$

素因数の和:1913

約数の個数: 72

約数和(自身を含む): 491801856

約数和(自身を除く): 330011196

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 907, 991, 1814, 1982, 2721, 2973, 3628, 3964, 4535, 4955, 5442, 5946, 8163, 8919, 9070, 9910, 10884, 11892, 13605, 14865, 16326, 17838, 18140, 19820, 27210, 29730, 32652, 35676, 40815, 44595, 54420, 59460, 81630, 89190, 163260, 178380, 898837, 1797674, 2696511, 3595348, 4494185, 5393022, 8089533, 8988370, 10786044, 13482555, 16179066, 17976740, 26965110, 32358132, 40447665, 53930220, 80895330, 161790660]

約数ペア:

[(1, 161790660), (2, 80895330), (3, 53930220), (4, 40447665), (5, 32358132), (6, 26965110), (9, 17976740), (10, 16179066), (12, 13482555), (15, 10786044), (18, 8988370), (20, 8089533), (30, 5393022), (36, 4494185), (45, 3595348), (60, 2696511), (90, 1797674), (180, 898837), (907, 178380), (991, 163260), (1814, 89190), (1982, 81630), (2721, 59460), (2973, 54420), (3628, 44595), (3964, 40815), (4535, 35676), (4955, 32652), (5442, 29730), (5946, 27210), (8163, 19820), (8919, 18140), (9070, 17838), (9910, 16326), (10884, 14865), (11892, 13605)]