20199783878

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{840467}}^1$

素因数の和:840727

約数の個数: 16

約数和(自身を含む): 30952755504

約数和(自身を除く): 10752971626

約数列:

[1, 2, 61, 122, 197, 394, 12017, 24034, 840467, 1680934, 51268487, 102536974, 165571999, 331143998, 10099891939, 20199783878]

約数ペア:

[(1, 20199783878), (2, 10099891939), (61, 331143998), (122, 165571999), (197, 102536974), (394, 51268487), (12017, 1680934), (24034, 840467)]