26521580

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{21739}}^1$

素因数の和:21809

約数の個数: 24

約数和(自身を含む): 56610960

約数和(自身を除く): 30089380

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 21739, 43478, 86956, 108695, 217390, 434780, 1326079, 2652158, 5304316, 6630395, 13260790, 26521580]

約数ペア:

[(1, 26521580), (2, 13260790), (4, 6630395), (5, 5304316), (10, 2652158), (20, 1326079), (61, 434780), (122, 217390), (244, 108695), (305, 86956), (610, 43478), (1220, 21739)]