18549380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{613}}^1$

素因数の和:728

約数の個数: 48

約数和(自身を含む): 41776560

約数和(自身を除く): 23227180

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 89, 170, 178, 340, 356, 445, 613, 890, 1226, 1513, 1780, 2452, 3026, 3065, 6052, 6130, 7565, 10421, 12260, 15130, 20842, 30260, 41684, 52105, 54557, 104210, 109114, 208420, 218228, 272785, 545570, 927469, 1091140, 1854938, 3709876, 4637345, 9274690, 18549380]

約数ペア:

[(1, 18549380), (2, 9274690), (4, 4637345), (5, 3709876), (10, 1854938), (17, 1091140), (20, 927469), (34, 545570), (68, 272785), (85, 218228), (89, 208420), (170, 109114), (178, 104210), (340, 54557), (356, 52105), (445, 41684), (613, 30260), (890, 20842), (1226, 15130), (1513, 12260), (1780, 10421), (2452, 7565), (3026, 6130), (3065, 6052)]