19749860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2053}}^1$

素因数の和:2112

約数の個数: 48

約数和(自身を含む): 45894576

約数和(自身を除く): 26144716

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 2053, 2405, 4106, 4810, 8212, 9620, 10265, 20530, 26689, 41060, 53378, 75961, 106756, 133445, 151922, 266890, 303844, 379805, 533780, 759610, 987493, 1519220, 1974986, 3949972, 4937465, 9874930, 19749860]

約数ペア:

[(1, 19749860), (2, 9874930), (4, 4937465), (5, 3949972), (10, 1974986), (13, 1519220), (20, 987493), (26, 759610), (37, 533780), (52, 379805), (65, 303844), (74, 266890), (130, 151922), (148, 133445), (185, 106756), (260, 75961), (370, 53378), (481, 41060), (740, 26689), (962, 20530), (1924, 10265), (2053, 9620), (2405, 8212), (4106, 4810)]