19407220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2069}}^1$

素因数の和:2152

約数の個数: 48

約数和(自身を含む): 47295360

約数和(自身を除く): 27888140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 2069, 2345, 4138, 4690, 8276, 9380, 10345, 14483, 20690, 28966, 41380, 57932, 72415, 138623, 144830, 277246, 289660, 554492, 693115, 970361, 1386230, 1940722, 2772460, 3881444, 4851805, 9703610, 19407220]

約数ペア:

[(1, 19407220), (2, 9703610), (4, 4851805), (5, 3881444), (7, 2772460), (10, 1940722), (14, 1386230), (20, 970361), (28, 693115), (35, 554492), (67, 289660), (70, 277246), (134, 144830), (140, 138623), (268, 72415), (335, 57932), (469, 41380), (670, 28966), (938, 20690), (1340, 14483), (1876, 10345), (2069, 9380), (2345, 8276), (4138, 4690)]