15398620

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 33566400

約数和(自身を除く): 18167780

約数列:

[1, 2, 4, 5, 10, 20, 53, 73, 106, 146, 199, 212, 265, 292, 365, 398, 530, 730, 796, 995, 1060, 1460, 1990, 3869, 3980, 7738, 10547, 14527, 15476, 19345, 21094, 29054, 38690, 42188, 52735, 58108, 72635, 77380, 105470, 145270, 210940, 290540, 769931, 1539862, 3079724, 3849655, 7699310, 15398620]

約数ペア:

[(1, 15398620), (2, 7699310), (4, 3849655), (5, 3079724), (10, 1539862), (20, 769931), (53, 290540), (73, 210940), (106, 145270), (146, 105470), (199, 77380), (212, 72635), (265, 58108), (292, 52735), (365, 42188), (398, 38690), (530, 29054), (730, 21094), (796, 19345), (995, 15476), (1060, 14527), (1460, 10547), (1990, 7738), (3869, 3980)]