651748760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:361

約数の個数: 128

約数和(自身を含む): 1625702400

約数和(自身を除く): 973953640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 127, 130, 139, 142, 254, 260, 278, 284, 355, 508, 520, 556, 568, 635, 695, 710, 923, 1016, 1112, 1270, 1390, 1420, 1651, 1807, 1846, 2540, 2780, 2840, 3302, 3614, 3692, 4615, 5080, 5560, 6604, 7228, 7384, 8255, 9017, 9035, 9230, 9869, 13208, 14456, 16510, 17653, 18034, 18070, 18460, 19738, 33020, 35306, 36068, 36140, 36920, 39476, 45085, 49345, 66040, 70612, 72136, 72280, 78952, 88265, 90170, 98690, 117221, 128297, 141224, 176530, 180340, 197380, 229489, 234442, 256594, 353060, 360680, 394760, 458978, 468884, 513188, 586105, 641485, 706120, 917956, 937768, 1026376, 1147445, 1172210, 1253363, 1282970, 1835912, 2294890, 2344420, 2506726, 2565940, 4589780, 4688840, 5013452, 5131880, 6266815, 9179560, 10026904, 12533630, 16293719, 25067260, 32587438, 50134520, 65174876, 81468595, 130349752, 162937190, 325874380, 651748760]

約数ペア:

[(1, 651748760), (2, 325874380), (4, 162937190), (5, 130349752), (8, 81468595), (10, 65174876), (13, 50134520), (20, 32587438), (26, 25067260), (40, 16293719), (52, 12533630), (65, 10026904), (71, 9179560), (104, 6266815), (127, 5131880), (130, 5013452), (139, 4688840), (142, 4589780), (254, 2565940), (260, 2506726), (278, 2344420), (284, 2294890), (355, 1835912), (508, 1282970), (520, 1253363), (556, 1172210), (568, 1147445), (635, 1026376), (695, 937768), (710, 917956), (923, 706120), (1016, 641485), (1112, 586105), (1270, 513188), (1390, 468884), (1420, 458978), (1651, 394760), (1807, 360680), (1846, 353060), (2540, 256594), (2780, 234442), (2840, 229489), (3302, 197380), (3614, 180340), (3692, 176530), (4615, 141224), (5080, 128297), (5560, 117221), (6604, 98690), (7228, 90170), (7384, 88265), (8255, 78952), (9017, 72280), (9035, 72136), (9230, 70612), (9869, 66040), (13208, 49345), (14456, 45085), (16510, 39476), (17653, 36920), (18034, 36140), (18070, 36068), (18460, 35306), (19738, 33020)]