19952620

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{457}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 43858080

約数和(自身を除く): 23905460

約数列:

[1, 2, 4, 5, 10, 20, 37, 59, 74, 118, 148, 185, 236, 295, 370, 457, 590, 740, 914, 1180, 1828, 2183, 2285, 4366, 4570, 8732, 9140, 10915, 16909, 21830, 26963, 33818, 43660, 53926, 67636, 84545, 107852, 134815, 169090, 269630, 338180, 539260, 997631, 1995262, 3990524, 4988155, 9976310, 19952620]

約数ペア:

[(1, 19952620), (2, 9976310), (4, 4988155), (5, 3990524), (10, 1995262), (20, 997631), (37, 539260), (59, 338180), (74, 269630), (118, 169090), (148, 134815), (185, 107852), (236, 84545), (295, 67636), (370, 53926), (457, 43660), (590, 33818), (740, 26963), (914, 21830), (1180, 16909), (1828, 10915), (2183, 9140), (2285, 8732), (4366, 4570)]