161788460

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{1033}}^1$

素因数の和:1274

約数の個数: 48

約数和(自身を含む): 350203392

約数和(自身を除く): 188414932

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 191, 205, 382, 410, 764, 820, 955, 1033, 1910, 2066, 3820, 4132, 5165, 7831, 10330, 15662, 20660, 31324, 39155, 42353, 78310, 84706, 156620, 169412, 197303, 211765, 394606, 423530, 789212, 847060, 986515, 1973030, 3946060, 8089423, 16178846, 32357692, 40447115, 80894230, 161788460]

約数ペア:

[(1, 161788460), (2, 80894230), (4, 40447115), (5, 32357692), (10, 16178846), (20, 8089423), (41, 3946060), (82, 1973030), (164, 986515), (191, 847060), (205, 789212), (382, 423530), (410, 394606), (764, 211765), (820, 197303), (955, 169412), (1033, 156620), (1910, 84706), (2066, 78310), (3820, 42353), (4132, 39155), (5165, 31324), (7831, 20660), (10330, 15662)]