21678120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{60217}}^1$

素因数の和:60234

約数の個数: 48

約数和(自身を含む): 70455060

約数和(自身を除く): 48776940

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 60217, 120434, 180651, 240868, 301085, 361302, 481736, 541953, 602170, 722604, 903255, 1083906, 1204340, 1445208, 1806510, 2167812, 2408680, 2709765, 3613020, 4335624, 5419530, 7226040, 10839060, 21678120]

約数ペア:

[(1, 21678120), (2, 10839060), (3, 7226040), (4, 5419530), (5, 4335624), (6, 3613020), (8, 2709765), (9, 2408680), (10, 2167812), (12, 1806510), (15, 1445208), (18, 1204340), (20, 1083906), (24, 903255), (30, 722604), (36, 602170), (40, 541953), (45, 481736), (60, 361302), (72, 301085), (90, 240868), (120, 180651), (180, 120434), (360, 60217)]