20741370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{4091}}^1$

素因数の和:4127

約数の個数: 48

約数和(自身を含む): 53916192

約数和(自身を除く): 33174822

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 169, 195, 338, 390, 507, 845, 1014, 1690, 2535, 4091, 5070, 8182, 12273, 20455, 24546, 40910, 53183, 61365, 106366, 122730, 159549, 265915, 319098, 531830, 691379, 797745, 1382758, 1595490, 2074137, 3456895, 4148274, 6913790, 10370685, 20741370]

約数ペア:

[(1, 20741370), (2, 10370685), (3, 6913790), (5, 4148274), (6, 3456895), (10, 2074137), (13, 1595490), (15, 1382758), (26, 797745), (30, 691379), (39, 531830), (65, 319098), (78, 265915), (130, 159549), (169, 122730), (195, 106366), (338, 61365), (390, 53183), (507, 40910), (845, 24546), (1014, 20455), (1690, 12273), (2535, 8182), (4091, 5070)]