20935296005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{68281}}^1$

素因数の和:68441

約数の個数: 32

約数和(自身を含む): 27875443680

約数和(自身を除く): 6940147675

約数列:

[1, 5, 13, 53, 65, 89, 265, 445, 689, 1157, 3445, 4717, 5785, 23585, 61321, 68281, 306605, 341405, 887653, 3618893, 4438265, 6077009, 18094465, 30385045, 47045609, 79001117, 235228045, 322081477, 395005585, 1610407385, 4187059201, 20935296005]

約数ペア:

[(1, 20935296005), (5, 4187059201), (13, 1610407385), (53, 395005585), (65, 322081477), (89, 235228045), (265, 79001117), (445, 47045609), (689, 30385045), (1157, 18094465), (3445, 6077009), (4717, 4438265), (5785, 3618893), (23585, 887653), (61321, 341405), (68281, 306605)]