20725770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2797}}^1$

素因数の和:2839

約数の個数: 64

約数和(自身を含む): 56407680

約数和(自身を除く): 35681910

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 19, 26, 30, 38, 39, 57, 65, 78, 95, 114, 130, 190, 195, 247, 285, 390, 494, 570, 741, 1235, 1482, 2470, 2797, 3705, 5594, 7410, 8391, 13985, 16782, 27970, 36361, 41955, 53143, 72722, 83910, 106286, 109083, 159429, 181805, 218166, 265715, 318858, 363610, 531430, 545415, 690859, 797145, 1090830, 1381718, 1594290, 2072577, 3454295, 4145154, 6908590, 10362885, 20725770]

約数ペア:

[(1, 20725770), (2, 10362885), (3, 6908590), (5, 4145154), (6, 3454295), (10, 2072577), (13, 1594290), (15, 1381718), (19, 1090830), (26, 797145), (30, 690859), (38, 545415), (39, 531430), (57, 363610), (65, 318858), (78, 265715), (95, 218166), (114, 181805), (130, 159429), (190, 109083), (195, 106286), (247, 83910), (285, 72722), (390, 53143), (494, 41955), (570, 36361), (741, 27970), (1235, 16782), (1482, 13985), (2470, 8391), (2797, 7410), (3705, 5594)]