20313045

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 39191040

約数和(自身を除く): 18877995

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 53, 85, 135, 153, 159, 167, 255, 265, 459, 477, 501, 765, 795, 835, 901, 1431, 1503, 2295, 2385, 2505, 2703, 2839, 4505, 4509, 7155, 7515, 8109, 8517, 8851, 13515, 14195, 22545, 24327, 25551, 26553, 40545, 42585, 44255, 76653, 79659, 121635, 127755, 132765, 150467, 238977, 383265, 398295, 451401, 752335, 1194885, 1354203, 2257005, 4062609, 6771015, 20313045]

約数ペア:

[(1, 20313045), (3, 6771015), (5, 4062609), (9, 2257005), (15, 1354203), (17, 1194885), (27, 752335), (45, 451401), (51, 398295), (53, 383265), (85, 238977), (135, 150467), (153, 132765), (159, 127755), (167, 121635), (255, 79659), (265, 76653), (459, 44255), (477, 42585), (501, 40545), (765, 26553), (795, 25551), (835, 24327), (901, 22545), (1431, 14195), (1503, 13515), (2295, 8851), (2385, 8517), (2505, 8109), (2703, 7515), (2839, 7155), (4505, 4509)]