80444860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1523}}^1$

素因数の和:1690

約数の個数: 48

約数和(自身を含む): 179222400

約数和(自身を除く): 98777540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 278, 380, 556, 695, 1390, 1523, 2641, 2780, 3046, 5282, 6092, 7615, 10564, 13205, 15230, 26410, 28937, 30460, 52820, 57874, 115748, 144685, 211697, 289370, 423394, 578740, 846788, 1058485, 2116970, 4022243, 4233940, 8044486, 16088972, 20111215, 40222430, 80444860]

約数ペア:

[(1, 80444860), (2, 40222430), (4, 20111215), (5, 16088972), (10, 8044486), (19, 4233940), (20, 4022243), (38, 2116970), (76, 1058485), (95, 846788), (139, 578740), (190, 423394), (278, 289370), (380, 211697), (556, 144685), (695, 115748), (1390, 57874), (1523, 52820), (2641, 30460), (2780, 28937), (3046, 26410), (5282, 15230), (6092, 13205), (7615, 10564)]