20199991690

素因数分解:

$2^1\times 5^1\times {\mathrm{77893}}^1\times {\mathrm{25933}}^1$

素因数の和:103833

約数の個数: 16

約数和(自身を含む): 36361853928

約数和(自身を除く): 16161862238

約数列:

[1, 2, 5, 10, 25933, 51866, 77893, 129665, 155786, 259330, 389465, 778930, 2019999169, 4039998338, 10099995845, 20199991690]

約数ペア:

[(1, 20199991690), (2, 10099995845), (5, 4039998338), (10, 2019999169), (25933, 778930), (51866, 389465), (77893, 259330), (129665, 155786)]