161815745

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5009}}^1$

素因数の和:5105

約数の個数: 32

約数和(自身を含む): 242403840

約数和(自身を除く): 80588095

約数列:

[1, 5, 7, 13, 35, 65, 71, 91, 355, 455, 497, 923, 2485, 4615, 5009, 6461, 25045, 32305, 35063, 65117, 175315, 325585, 355639, 455819, 1778195, 2279095, 2489473, 4623307, 12447365, 23116535, 32363149, 161815745]

約数ペア:

[(1, 161815745), (5, 32363149), (7, 23116535), (13, 12447365), (35, 4623307), (65, 2489473), (71, 2279095), (91, 1778195), (355, 455819), (455, 355639), (497, 325585), (923, 175315), (2485, 65117), (4615, 35063), (5009, 32305), (6461, 25045)]