19729220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7417}}^1$

素因数の和:7452

約数の個数: 48

約数和(自身を含む): 49848960

約数和(自身を除く): 30119740

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 7417, 14834, 29668, 37085, 51919, 74170, 103838, 140923, 148340, 207676, 259595, 281846, 519190, 563692, 704615, 986461, 1038380, 1409230, 1972922, 2818460, 3945844, 4932305, 9864610, 19729220]

約数ペア:

[(1, 19729220), (2, 9864610), (4, 4932305), (5, 3945844), (7, 2818460), (10, 1972922), (14, 1409230), (19, 1038380), (20, 986461), (28, 704615), (35, 563692), (38, 519190), (70, 281846), (76, 259595), (95, 207676), (133, 148340), (140, 140923), (190, 103838), (266, 74170), (380, 51919), (532, 37085), (665, 29668), (1330, 14834), (2660, 7417)]