64519120

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:428

約数の個数: 80

約数和(自身を含む): 156739968

約数和(自身を除く): 92220848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 71, 74, 80, 142, 148, 185, 284, 296, 307, 355, 370, 568, 592, 614, 710, 740, 1136, 1228, 1420, 1480, 1535, 2456, 2627, 2840, 2960, 3070, 4912, 5254, 5680, 6140, 10508, 11359, 12280, 13135, 21016, 21797, 22718, 24560, 26270, 42032, 43594, 45436, 52540, 56795, 87188, 90872, 105080, 108985, 113590, 174376, 181744, 210160, 217970, 227180, 348752, 435940, 454360, 806489, 871880, 908720, 1612978, 1743760, 3225956, 4032445, 6451912, 8064890, 12903824, 16129780, 32259560, 64519120]

約数ペア:

[(1, 64519120), (2, 32259560), (4, 16129780), (5, 12903824), (8, 8064890), (10, 6451912), (16, 4032445), (20, 3225956), (37, 1743760), (40, 1612978), (71, 908720), (74, 871880), (80, 806489), (142, 454360), (148, 435940), (185, 348752), (284, 227180), (296, 217970), (307, 210160), (355, 181744), (370, 174376), (568, 113590), (592, 108985), (614, 105080), (710, 90872), (740, 87188), (1136, 56795), (1228, 52540), (1420, 45436), (1480, 43594), (1535, 42032), (2456, 26270), (2627, 24560), (2840, 22718), (2960, 21797), (3070, 21016), (4912, 13135), (5254, 12280), (5680, 11359), (6140, 10508)]