20559590

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{349}}^1$

素因数の和:536

約数の個数: 32

約数和(自身を含む): 38253600

約数和(自身を除く): 17694010

約数列:

[1, 2, 5, 10, 43, 86, 137, 215, 274, 349, 430, 685, 698, 1370, 1745, 3490, 5891, 11782, 15007, 29455, 30014, 47813, 58910, 75035, 95626, 150070, 239065, 478130, 2055959, 4111918, 10279795, 20559590]

約数ペア:

[(1, 20559590), (2, 10279795), (5, 4111918), (10, 2055959), (43, 478130), (86, 239065), (137, 150070), (215, 95626), (274, 75035), (349, 58910), (430, 47813), (685, 30014), (698, 29455), (1370, 15007), (1745, 11782), (3490, 5891)]