256987040

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{12647}}^1$

素因数の和:12789

約数の個数: 48

約数和(自身を含む): 611960832

約数和(自身を除く): 354973792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 2032, 2540, 4064, 5080, 10160, 12647, 20320, 25294, 50588, 63235, 101176, 126470, 202352, 252940, 404704, 505880, 1011760, 1606169, 2023520, 3212338, 6424676, 8030845, 12849352, 16061690, 25698704, 32123380, 51397408, 64246760, 128493520, 256987040]

約数ペア:

[(1, 256987040), (2, 128493520), (4, 64246760), (5, 51397408), (8, 32123380), (10, 25698704), (16, 16061690), (20, 12849352), (32, 8030845), (40, 6424676), (80, 3212338), (127, 2023520), (160, 1606169), (254, 1011760), (508, 505880), (635, 404704), (1016, 252940), (1270, 202352), (2032, 126470), (2540, 101176), (4064, 63235), (5080, 50588), (10160, 25294), (12647, 20320)]