20898508760

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{397}}^1\times {\mathrm{4751}}^1$

素因数の和:5436

約数の個数: 64

約数和(自身を含む): 47320225920

約数和(自身を除く): 26421717160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 397, 554, 794, 1108, 1385, 1588, 1985, 2216, 2770, 3176, 3970, 4751, 5540, 7940, 9502, 11080, 15880, 19004, 23755, 38008, 47510, 95020, 109969, 190040, 219938, 439876, 549845, 879752, 1099690, 1316027, 1886147, 2199380, 2632054, 3772294, 4398760, 5264108, 6580135, 7544588, 9430735, 10528216, 13160270, 15089176, 18861470, 26320540, 37722940, 52641080, 75445880, 522462719, 1044925438, 2089850876, 2612313595, 4179701752, 5224627190, 10449254380, 20898508760]

約数ペア:

[(1, 20898508760), (2, 10449254380), (4, 5224627190), (5, 4179701752), (8, 2612313595), (10, 2089850876), (20, 1044925438), (40, 522462719), (277, 75445880), (397, 52641080), (554, 37722940), (794, 26320540), (1108, 18861470), (1385, 15089176), (1588, 13160270), (1985, 10528216), (2216, 9430735), (2770, 7544588), (3176, 6580135), (3970, 5264108), (4751, 4398760), (5540, 3772294), (7940, 2632054), (9502, 2199380), (11080, 1886147), (15880, 1316027), (19004, 1099690), (23755, 879752), (38008, 549845), (47510, 439876), (95020, 219938), (109969, 190040)]