19801712

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{7687}}^1$

素因数の和:7725

約数の個数: 40

約数和(自身を含む): 45758976

約数和(自身を除く): 25957264

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 1288, 2576, 7687, 15374, 30748, 53809, 61496, 107618, 122992, 176801, 215236, 353602, 430472, 707204, 860944, 1237607, 1414408, 2475214, 2828816, 4950428, 9900856, 19801712]

約数ペア:

[(1, 19801712), (2, 9900856), (4, 4950428), (7, 2828816), (8, 2475214), (14, 1414408), (16, 1237607), (23, 860944), (28, 707204), (46, 430472), (56, 353602), (92, 215236), (112, 176801), (161, 122992), (184, 107618), (322, 61496), (368, 53809), (644, 30748), (1288, 15374), (2576, 7687)]