20307945

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{367}}^1$

素因数の和:430

約数の個数: 64

約数和(自身を含む): 40697856

約数和(自身を除く): 20389911

約数列:

[1, 3, 5, 7, 15, 17, 21, 31, 35, 51, 85, 93, 105, 119, 155, 217, 255, 357, 367, 465, 527, 595, 651, 1085, 1101, 1581, 1785, 1835, 2569, 2635, 3255, 3689, 5505, 6239, 7707, 7905, 11067, 11377, 12845, 18445, 18717, 31195, 34131, 38535, 43673, 55335, 56885, 79639, 93585, 131019, 170655, 193409, 218365, 238917, 398195, 580227, 655095, 967045, 1194585, 1353863, 2901135, 4061589, 6769315, 20307945]

約数ペア:

[(1, 20307945), (3, 6769315), (5, 4061589), (7, 2901135), (15, 1353863), (17, 1194585), (21, 967045), (31, 655095), (35, 580227), (51, 398195), (85, 238917), (93, 218365), (105, 193409), (119, 170655), (155, 131019), (217, 93585), (255, 79639), (357, 56885), (367, 55335), (465, 43673), (527, 38535), (595, 34131), (651, 31195), (1085, 18717), (1101, 18445), (1581, 12845), (1785, 11377), (1835, 11067), (2569, 7905), (2635, 7707), (3255, 6239), (3689, 5505)]