20304396

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{409}}^1$

素因数の和:623

約数の個数: 72

約数和(自身を含む): 59099040

約数和(自身を除く): 38794644

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 197, 252, 394, 409, 591, 788, 818, 1182, 1227, 1379, 1636, 1773, 2364, 2454, 2758, 2863, 3546, 3681, 4137, 4908, 5516, 5726, 7092, 7362, 8274, 8589, 11452, 12411, 14724, 16548, 17178, 24822, 25767, 34356, 49644, 51534, 80573, 103068, 161146, 241719, 322292, 483438, 564011, 725157, 966876, 1128022, 1450314, 1692033, 2256044, 2900628, 3384066, 5076099, 6768132, 10152198, 20304396]

約数ペア:

[(1, 20304396), (2, 10152198), (3, 6768132), (4, 5076099), (6, 3384066), (7, 2900628), (9, 2256044), (12, 1692033), (14, 1450314), (18, 1128022), (21, 966876), (28, 725157), (36, 564011), (42, 483438), (63, 322292), (84, 241719), (126, 161146), (197, 103068), (252, 80573), (394, 51534), (409, 49644), (591, 34356), (788, 25767), (818, 24822), (1182, 17178), (1227, 16548), (1379, 14724), (1636, 12411), (1773, 11452), (2364, 8589), (2454, 8274), (2758, 7362), (2863, 7092), (3546, 5726), (3681, 5516), (4137, 4908)]