180735440

素因数分解:

$2^4\times 5^1\times {\mathrm{487}}^1\times {\mathrm{4639}}^1$

素因数の和:5139

約数の個数: 40

約数和(自身を含む): 421163520

約数和(自身を除く): 240428080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 487, 974, 1948, 2435, 3896, 4639, 4870, 7792, 9278, 9740, 18556, 19480, 23195, 37112, 38960, 46390, 74224, 92780, 185560, 371120, 2259193, 4518386, 9036772, 11295965, 18073544, 22591930, 36147088, 45183860, 90367720, 180735440]

約数ペア:

[(1, 180735440), (2, 90367720), (4, 45183860), (5, 36147088), (8, 22591930), (10, 18073544), (16, 11295965), (20, 9036772), (40, 4518386), (80, 2259193), (487, 371120), (974, 185560), (1948, 92780), (2435, 74224), (3896, 46390), (4639, 38960), (4870, 37112), (7792, 23195), (9278, 19480), (9740, 18556)]