20019374920

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3600607}}^1$

素因数の和:3600757

約数の個数: 32

約数和(自身を含む): 45367660800

約数和(自身を除く): 25348285880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 3600607, 7201214, 14402428, 18003035, 28804856, 36006070, 72012140, 144024280, 500484373, 1000968746, 2001937492, 2502421865, 4003874984, 5004843730, 10009687460, 20019374920]

約数ペア:

[(1, 20019374920), (2, 10009687460), (4, 5004843730), (5, 4003874984), (8, 2502421865), (10, 2001937492), (20, 1000968746), (40, 500484373), (139, 144024280), (278, 72012140), (556, 36006070), (695, 28804856), (1112, 18003035), (1390, 14402428), (2780, 7201214), (5560, 3600607)]