81753490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89839}}^1$

素因数の和:89866

約数の個数: 32

約数和(自身を含む): 181117440

約数和(自身を除く): 99363950

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 89839, 179678, 449195, 628873, 898390, 1167907, 1257746, 2335814, 3144365, 5839535, 6288730, 8175349, 11679070, 16350698, 40876745, 81753490]

約数ペア:

[(1, 81753490), (2, 40876745), (5, 16350698), (7, 11679070), (10, 8175349), (13, 6288730), (14, 5839535), (26, 3144365), (35, 2335814), (65, 1257746), (70, 1167907), (91, 898390), (130, 628873), (182, 449195), (455, 179678), (910, 89839)]