156780995

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{3301}}^1$

素因数の和:3395

約数の個数: 32

約数和(自身を含む): 228234240

約数和(自身を除く): 71453245

約数列:

[1, 5, 7, 23, 35, 59, 115, 161, 295, 413, 805, 1357, 2065, 3301, 6785, 9499, 16505, 23107, 47495, 75923, 115535, 194759, 379615, 531461, 973795, 1363313, 2657305, 4479457, 6816565, 22397285, 31356199, 156780995]

約数ペア:

[(1, 156780995), (5, 31356199), (7, 22397285), (23, 6816565), (35, 4479457), (59, 2657305), (115, 1363313), (161, 973795), (295, 531461), (413, 379615), (805, 194759), (1357, 115535), (2065, 75923), (3301, 47495), (6785, 23107), (9499, 16505)]