1640221694

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1\times {\mathrm{617}}^1$

素因数の和:980

約数の個数: 32

約数和(自身を含む): 2537873856

約数和(自身を除く): 897652162

約数列:

[1, 2, 71, 97, 142, 193, 194, 386, 617, 1234, 6887, 13703, 13774, 18721, 27406, 37442, 43807, 59849, 87614, 119081, 119698, 238162, 1329191, 2658382, 4249279, 8454751, 8498558, 11550857, 16909502, 23101714, 820110847, 1640221694]

約数ペア:

[(1, 1640221694), (2, 820110847), (71, 23101714), (97, 16909502), (142, 11550857), (193, 8498558), (194, 8454751), (386, 4249279), (617, 2658382), (1234, 1329191), (6887, 238162), (13703, 119698), (13774, 119081), (18721, 87614), (27406, 59849), (37442, 43807)]