161422660

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{23531}}^1$

素因数の和:23561

約数の個数: 48

約数和(自身を含む): 395337600

約数和(自身を除く): 233914940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 23531, 47062, 94124, 117655, 164717, 235310, 329434, 470620, 658868, 823585, 1153019, 1647170, 2306038, 3294340, 4612076, 5765095, 8071133, 11530190, 16142266, 23060380, 32284532, 40355665, 80711330, 161422660]

約数ペア:

[(1, 161422660), (2, 80711330), (4, 40355665), (5, 32284532), (7, 23060380), (10, 16142266), (14, 11530190), (20, 8071133), (28, 5765095), (35, 4612076), (49, 3294340), (70, 2306038), (98, 1647170), (140, 1153019), (196, 823585), (245, 658868), (343, 470620), (490, 329434), (686, 235310), (980, 164717), (1372, 117655), (1715, 94124), (3430, 47062), (6860, 23531)]