20172901905

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{310663}}^1$

素因数の和:310727

約数の個数: 64

約数和(自身を含む): 39665579520

約数和(自身を除く): 19492677615

約数列:

[1, 3, 5, 9, 13, 15, 27, 37, 39, 45, 65, 111, 117, 135, 185, 195, 333, 351, 481, 555, 585, 999, 1443, 1665, 1755, 2405, 4329, 4995, 7215, 12987, 21645, 64935, 310663, 931989, 1553315, 2795967, 4038619, 4659945, 8387901, 11494531, 12115857, 13979835, 20193095, 34483593, 36347571, 41939505, 57472655, 60579285, 103450779, 109042713, 149428903, 172417965, 181737855, 310352337, 448286709, 517253895, 545213565, 747144515, 1344860127, 1551761685, 2241433545, 4034580381, 6724300635, 20172901905]

約数ペア:

[(1, 20172901905), (3, 6724300635), (5, 4034580381), (9, 2241433545), (13, 1551761685), (15, 1344860127), (27, 747144515), (37, 545213565), (39, 517253895), (45, 448286709), (65, 310352337), (111, 181737855), (117, 172417965), (135, 149428903), (185, 109042713), (195, 103450779), (333, 60579285), (351, 57472655), (481, 41939505), (555, 36347571), (585, 34483593), (999, 20193095), (1443, 13979835), (1665, 12115857), (1755, 11494531), (2405, 8387901), (4329, 4659945), (4995, 4038619), (7215, 2795967), (12987, 1553315), (21645, 931989), (64935, 310663)]