17450780

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{163}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 37939104

約数和(自身を除く): 20488324

約数列:

[1, 2, 4, 5, 10, 20, 53, 101, 106, 163, 202, 212, 265, 326, 404, 505, 530, 652, 815, 1010, 1060, 1630, 2020, 3260, 5353, 8639, 10706, 16463, 17278, 21412, 26765, 32926, 34556, 43195, 53530, 65852, 82315, 86390, 107060, 164630, 172780, 329260, 872539, 1745078, 3490156, 4362695, 8725390, 17450780]

約数ペア:

[(1, 17450780), (2, 8725390), (4, 4362695), (5, 3490156), (10, 1745078), (20, 872539), (53, 329260), (101, 172780), (106, 164630), (163, 107060), (202, 86390), (212, 82315), (265, 65852), (326, 53530), (404, 43195), (505, 34556), (530, 32926), (652, 26765), (815, 21412), (1010, 17278), (1060, 16463), (1630, 10706), (2020, 8639), (3260, 5353)]