161570915

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{491}}^1$

素因数の和:731

約数の個数: 32

約数和(自身を含む): 219912192

約数和(自身を除く): 58341277

約数列:

[1, 5, 11, 31, 55, 155, 193, 341, 491, 965, 1705, 2123, 2455, 5401, 5983, 10615, 15221, 27005, 29915, 65813, 76105, 94763, 167431, 329065, 473815, 837155, 1042393, 2937653, 5211965, 14688265, 32314183, 161570915]

約数ペア:

[(1, 161570915), (5, 32314183), (11, 14688265), (31, 5211965), (55, 2937653), (155, 1042393), (193, 837155), (341, 473815), (491, 329065), (965, 167431), (1705, 94763), (2123, 76105), (2455, 65813), (5401, 29915), (5983, 27005), (10615, 15221)]