80388220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{15887}}^1$

素因数の和:15930

約数の個数: 48

約数和(自身を含む): 192181248

約数和(自身を除く): 111793028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 5060, 15887, 31774, 63548, 79435, 158870, 174757, 317740, 349514, 365401, 699028, 730802, 873785, 1461604, 1747570, 1827005, 3495140, 3654010, 4019411, 7308020, 8038822, 16077644, 20097055, 40194110, 80388220]

約数ペア:

[(1, 80388220), (2, 40194110), (4, 20097055), (5, 16077644), (10, 8038822), (11, 7308020), (20, 4019411), (22, 3654010), (23, 3495140), (44, 1827005), (46, 1747570), (55, 1461604), (92, 873785), (110, 730802), (115, 699028), (220, 365401), (230, 349514), (253, 317740), (460, 174757), (506, 158870), (1012, 79435), (1265, 63548), (2530, 31774), (5060, 15887)]