161894355

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1559}}^1$

素因数の和:1640

約数の個数: 64

約数和(自身を含む): 316293120

約数和(自身を除く): 154398765

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 43, 69, 105, 115, 129, 161, 215, 301, 345, 483, 645, 805, 903, 989, 1505, 1559, 2415, 2967, 4515, 4677, 4945, 6923, 7795, 10913, 14835, 20769, 23385, 32739, 34615, 35857, 54565, 67037, 103845, 107571, 163695, 179285, 201111, 250999, 335185, 469259, 537855, 752997, 1005555, 1254995, 1407777, 1541851, 2346295, 3764985, 4625553, 7038885, 7709255, 10792957, 23127765, 32378871, 53964785, 161894355]

約数ペア:

[(1, 161894355), (3, 53964785), (5, 32378871), (7, 23127765), (15, 10792957), (21, 7709255), (23, 7038885), (35, 4625553), (43, 3764985), (69, 2346295), (105, 1541851), (115, 1407777), (129, 1254995), (161, 1005555), (215, 752997), (301, 537855), (345, 469259), (483, 335185), (645, 250999), (805, 201111), (903, 179285), (989, 163695), (1505, 107571), (1559, 103845), (2415, 67037), (2967, 54565), (4515, 35857), (4677, 34615), (4945, 32739), (6923, 23385), (7795, 20769), (10913, 14835)]