28340147140

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{719}}^1\times {\mathrm{5647}}^1$

素因数の和:6724

約数の個数: 48

約数和(自身を含む): 59778432000

約数和(自身を除く): 31438284860

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 719, 1396, 1438, 1745, 2876, 3490, 3595, 5647, 6980, 7190, 11294, 14380, 22588, 28235, 56470, 112940, 250931, 501862, 1003724, 1254655, 1970803, 2509310, 3941606, 4060193, 5018620, 7883212, 8120386, 9854015, 16240772, 19708030, 20300965, 39416060, 40601930, 81203860, 1417007357, 2834014714, 5668029428, 7085036785, 14170073570, 28340147140]

約数ペア:

[(1, 28340147140), (2, 14170073570), (4, 7085036785), (5, 5668029428), (10, 2834014714), (20, 1417007357), (349, 81203860), (698, 40601930), (719, 39416060), (1396, 20300965), (1438, 19708030), (1745, 16240772), (2876, 9854015), (3490, 8120386), (3595, 7883212), (5647, 5018620), (6980, 4060193), (7190, 3941606), (11294, 2509310), (14380, 1970803), (22588, 1254655), (28235, 1003724), (56470, 501862), (112940, 250931)]