90378980

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{67447}}^1$

素因数の和:67523

約数の個数: 24

約数和(自身を含む): 192631488

約数和(自身を除く): 102252508

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 67447, 134894, 269788, 337235, 674470, 1348940, 4518949, 9037898, 18075796, 22594745, 45189490, 90378980]

約数ペア:

[(1, 90378980), (2, 45189490), (4, 22594745), (5, 18075796), (10, 9037898), (20, 4518949), (67, 1348940), (134, 674470), (268, 337235), (335, 269788), (670, 134894), (1340, 67447)]