20896366875

素因数分解:

$3^1\times 5^4\times {\mathrm{29}}^1\times {\mathrm{384301}}^1$

素因数の和:384353

約数の個数: 40

約数和(自身を含む): 36016783440

約数和(自身を除く): 15120416565

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 125, 145, 375, 435, 625, 725, 1875, 2175, 3625, 10875, 18125, 54375, 384301, 1152903, 1921505, 5764515, 9607525, 11144729, 28822575, 33434187, 48037625, 55723645, 144112875, 167170935, 240188125, 278618225, 720564375, 835854675, 1393091125, 4179273375, 6965455625, 20896366875]

約数ペア:

[(1, 20896366875), (3, 6965455625), (5, 4179273375), (15, 1393091125), (25, 835854675), (29, 720564375), (75, 278618225), (87, 240188125), (125, 167170935), (145, 144112875), (375, 55723645), (435, 48037625), (625, 33434187), (725, 28822575), (1875, 11144729), (2175, 9607525), (3625, 5764515), (10875, 1921505), (18125, 1152903), (54375, 384301)]