20207241680

素因数分解:

$2^4\times 5^1\times {\mathrm{1693}}^1\times {\mathrm{149197}}^1$

素因数の和:150903

約数の個数: 40

約数和(自身を含む): 47009902632

約数和(自身を除く): 26802660952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1693, 3386, 6772, 8465, 13544, 16930, 27088, 33860, 67720, 135440, 149197, 298394, 596788, 745985, 1193576, 1491970, 2387152, 2983940, 5967880, 11935760, 252590521, 505181042, 1010362084, 1262952605, 2020724168, 2525905210, 4041448336, 5051810420, 10103620840, 20207241680]

約数ペア:

[(1, 20207241680), (2, 10103620840), (4, 5051810420), (5, 4041448336), (8, 2525905210), (10, 2020724168), (16, 1262952605), (20, 1010362084), (40, 505181042), (80, 252590521), (1693, 11935760), (3386, 5967880), (6772, 2983940), (8465, 2387152), (13544, 1491970), (16930, 1193576), (27088, 745985), (33860, 596788), (67720, 298394), (135440, 149197)]