421230921520

素因数分解:

$2^4\times 5^1\times {\mathrm{5265386519}}^1$

素因数の和:5265386532

約数の個数: 20

約数和(自身を含む): 979361892720

約数和(自身を除く): 558130971200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5265386519, 10530773038, 21061546076, 26326932595, 42123092152, 52653865190, 84246184304, 105307730380, 210615460760, 421230921520]

約数ペア:

[(1, 421230921520), (2, 210615460760), (4, 105307730380), (5, 84246184304), (8, 52653865190), (10, 42123092152), (16, 26326932595), (20, 21061546076), (40, 10530773038), (80, 5265386519)]