1981340270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2177297}}^1$

素因数の和:2177324

約数の個数: 32

約数和(自身を含む): 4389432768

約数和(自身を除く): 2408092498

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 2177297, 4354594, 10886485, 15241079, 21772970, 28304861, 30482158, 56609722, 76205395, 141524305, 152410790, 198134027, 283048610, 396268054, 990670135, 1981340270]

約数ペア:

[(1, 1981340270), (2, 990670135), (5, 396268054), (7, 283048610), (10, 198134027), (13, 152410790), (14, 141524305), (26, 76205395), (35, 56609722), (65, 30482158), (70, 28304861), (91, 21772970), (130, 15241079), (182, 10886485), (455, 4354594), (910, 2177297)]