19449220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{138923}}^1$

素因数の和:138939

約数の個数: 24

約数和(自身を含む): 46678464

約数和(自身を除く): 27229244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 138923, 277846, 555692, 694615, 972461, 1389230, 1944922, 2778460, 3889844, 4862305, 9724610, 19449220]

約数ペア:

[(1, 19449220), (2, 9724610), (4, 4862305), (5, 3889844), (7, 2778460), (10, 1944922), (14, 1389230), (20, 972461), (28, 694615), (35, 555692), (70, 277846), (140, 138923)]