287579440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{1381}}^1$

素因数の和:1550

約数の個数: 80

約数和(自身を含む): 709463520

約数和(自身を除く): 421884080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 137, 152, 190, 274, 304, 380, 548, 685, 760, 1096, 1370, 1381, 1520, 2192, 2603, 2740, 2762, 5206, 5480, 5524, 6905, 10412, 10960, 11048, 13015, 13810, 20824, 22096, 26030, 26239, 27620, 41648, 52060, 52478, 55240, 104120, 104956, 110480, 131195, 189197, 208240, 209912, 262390, 378394, 419824, 524780, 756788, 945985, 1049560, 1513576, 1891970, 2099120, 3027152, 3594743, 3783940, 7189486, 7567880, 14378972, 15135760, 17973715, 28757944, 35947430, 57515888, 71894860, 143789720, 287579440]

約数ペア:

[(1, 287579440), (2, 143789720), (4, 71894860), (5, 57515888), (8, 35947430), (10, 28757944), (16, 17973715), (19, 15135760), (20, 14378972), (38, 7567880), (40, 7189486), (76, 3783940), (80, 3594743), (95, 3027152), (137, 2099120), (152, 1891970), (190, 1513576), (274, 1049560), (304, 945985), (380, 756788), (548, 524780), (685, 419824), (760, 378394), (1096, 262390), (1370, 209912), (1381, 208240), (1520, 189197), (2192, 131195), (2603, 110480), (2740, 104956), (2762, 104120), (5206, 55240), (5480, 52478), (5524, 52060), (6905, 41648), (10412, 27620), (10960, 26239), (11048, 26030), (13015, 22096), (13810, 20824)]