168605620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{1579}}^1$

素因数の和:1888

約数の個数: 48

約数和(自身を含む): 374270400

約数和(自身を除く): 205664780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 281, 380, 562, 1124, 1405, 1579, 2810, 3158, 5339, 5620, 6316, 7895, 10678, 15790, 21356, 26695, 30001, 31580, 53390, 60002, 106780, 120004, 150005, 300010, 443699, 600020, 887398, 1774796, 2218495, 4436990, 8430281, 8873980, 16860562, 33721124, 42151405, 84302810, 168605620]

約数ペア:

[(1, 168605620), (2, 84302810), (4, 42151405), (5, 33721124), (10, 16860562), (19, 8873980), (20, 8430281), (38, 4436990), (76, 2218495), (95, 1774796), (190, 887398), (281, 600020), (380, 443699), (562, 300010), (1124, 150005), (1405, 120004), (1579, 106780), (2810, 60002), (3158, 53390), (5339, 31580), (5620, 30001), (6316, 26695), (7895, 21356), (10678, 15790)]