77942980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{49331}}^1$

素因数の和:49419

約数の個数: 24

約数和(自身を含む): 165755520

約数和(自身を除く): 87812540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 49331, 98662, 197324, 246655, 493310, 986620, 3897149, 7794298, 15588596, 19485745, 38971490, 77942980]

約数ペア:

[(1, 77942980), (2, 38971490), (4, 19485745), (5, 15588596), (10, 7794298), (20, 3897149), (79, 986620), (158, 493310), (316, 246655), (395, 197324), (790, 98662), (1580, 49331)]