405831040

素因数分解:

$2^7\times 5^1\times {\mathrm{127}}^1\times {\mathrm{4993}}^1$

素因数の和:5139

約数の個数: 64

約数和(自身を含む): 978024960

約数和(自身を除く): 572193920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 320, 508, 635, 640, 1016, 1270, 2032, 2540, 4064, 4993, 5080, 8128, 9986, 10160, 16256, 19972, 20320, 24965, 39944, 40640, 49930, 79888, 81280, 99860, 159776, 199720, 319552, 399440, 634111, 639104, 798880, 1268222, 1597760, 2536444, 3170555, 3195520, 5072888, 6341110, 10145776, 12682220, 20291552, 25364440, 40583104, 50728880, 81166208, 101457760, 202915520, 405831040]

約数ペア:

[(1, 405831040), (2, 202915520), (4, 101457760), (5, 81166208), (8, 50728880), (10, 40583104), (16, 25364440), (20, 20291552), (32, 12682220), (40, 10145776), (64, 6341110), (80, 5072888), (127, 3195520), (128, 3170555), (160, 2536444), (254, 1597760), (320, 1268222), (508, 798880), (635, 639104), (640, 634111), (1016, 399440), (1270, 319552), (2032, 199720), (2540, 159776), (4064, 99860), (4993, 81280), (5080, 79888), (8128, 49930), (9986, 40640), (10160, 39944), (16256, 24965), (19972, 20320)]