12178985

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 18973440

約数和(自身を除く): 6794455

約数列:

[1, 5, 7, 13, 29, 35, 65, 71, 91, 145, 169, 203, 355, 377, 455, 497, 845, 923, 1015, 1183, 1885, 2059, 2485, 2639, 4615, 4901, 5915, 6461, 10295, 11999, 13195, 14413, 24505, 26767, 32305, 34307, 59995, 72065, 83993, 133835, 171535, 187369, 347971, 419965, 936845, 1739855, 2435797, 12178985]

約数ペア:

[(1, 12178985), (5, 2435797), (7, 1739855), (13, 936845), (29, 419965), (35, 347971), (65, 187369), (71, 171535), (91, 133835), (145, 83993), (169, 72065), (203, 59995), (355, 34307), (377, 32305), (455, 26767), (497, 24505), (845, 14413), (923, 13195), (1015, 11999), (1183, 10295), (1885, 6461), (2059, 5915), (2485, 4901), (2639, 4615)]