51205980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17417}}^1$

素因数の和:17443

約数の個数: 72

約数和(自身を含む): 166794768

約数和(自身を除く): 115588788

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 17417, 34834, 52251, 69668, 87085, 104502, 121919, 174170, 209004, 243838, 261255, 348340, 365757, 487676, 522510, 609595, 731514, 853433, 1045020, 1219190, 1463028, 1706866, 1828785, 2438380, 2560299, 3413732, 3657570, 4267165, 5120598, 7315140, 8534330, 10241196, 12801495, 17068660, 25602990, 51205980]

約数ペア:

[(1, 51205980), (2, 25602990), (3, 17068660), (4, 12801495), (5, 10241196), (6, 8534330), (7, 7315140), (10, 5120598), (12, 4267165), (14, 3657570), (15, 3413732), (20, 2560299), (21, 2438380), (28, 1828785), (30, 1706866), (35, 1463028), (42, 1219190), (49, 1045020), (60, 853433), (70, 731514), (84, 609595), (98, 522510), (105, 487676), (140, 365757), (147, 348340), (196, 261255), (210, 243838), (245, 209004), (294, 174170), (420, 121919), (490, 104502), (588, 87085), (735, 69668), (980, 52251), (1470, 34834), (2940, 17417)]