161878990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{177889}}^1$

素因数の和:177916

約数の個数: 32

約数和(自身を含む): 358626240

約数和(自身を除く): 196747250

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 177889, 355778, 889445, 1245223, 1778890, 2312557, 2490446, 4625114, 6226115, 11562785, 12452230, 16187899, 23125570, 32375798, 80939495, 161878990]

約数ペア:

[(1, 161878990), (2, 80939495), (5, 32375798), (7, 23125570), (10, 16187899), (13, 12452230), (14, 11562785), (26, 6226115), (35, 4625114), (65, 2490446), (70, 2312557), (91, 1778890), (130, 1245223), (182, 889445), (455, 355778), (910, 177889)]