64921870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{21713}}^1$

素因数の和:21756

約数の個数: 32

約数和(自身を含む): 131326272

約数和(自身を除く): 66404402

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 21713, 43426, 108565, 217130, 282269, 499399, 564538, 998798, 1411345, 2496995, 2822690, 4993990, 6492187, 12984374, 32460935, 64921870]

約数ペア:

[(1, 64921870), (2, 32460935), (5, 12984374), (10, 6492187), (13, 4993990), (23, 2822690), (26, 2496995), (46, 1411345), (65, 998798), (115, 564538), (130, 499399), (230, 282269), (299, 217130), (598, 108565), (1495, 43426), (2990, 21713)]