31496790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{80761}}^1$

素因数の和:80784

約数の個数: 32

約数和(自身を含む): 81408096

約数和(自身を除く): 49911306

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 80761, 161522, 242283, 403805, 484566, 807610, 1049893, 1211415, 2099786, 2422830, 3149679, 5249465, 6299358, 10498930, 15748395, 31496790]

約数ペア:

[(1, 31496790), (2, 15748395), (3, 10498930), (5, 6299358), (6, 5249465), (10, 3149679), (13, 2422830), (15, 2099786), (26, 1211415), (30, 1049893), (39, 807610), (65, 484566), (78, 403805), (130, 242283), (195, 161522), (390, 80761)]