19486550

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:281

約数の個数: 48

約数和(自身を含む): 38167200

約数和(自身を除く): 18680650

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 89, 145, 151, 178, 290, 302, 445, 725, 755, 890, 1450, 1510, 2225, 2581, 3775, 4379, 4450, 5162, 7550, 8758, 12905, 13439, 21895, 25810, 26878, 43790, 64525, 67195, 109475, 129050, 134390, 218950, 335975, 389731, 671950, 779462, 1948655, 3897310, 9743275, 19486550]

約数ペア:

[(1, 19486550), (2, 9743275), (5, 3897310), (10, 1948655), (25, 779462), (29, 671950), (50, 389731), (58, 335975), (89, 218950), (145, 134390), (151, 129050), (178, 109475), (290, 67195), (302, 64525), (445, 43790), (725, 26878), (755, 25810), (890, 21895), (1450, 13439), (1510, 12905), (2225, 8758), (2581, 7550), (3775, 5162), (4379, 4450)]