16780260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{39953}}^1$

素因数の和:39972

約数の個数: 48

約数和(自身を含む): 53698176

約数和(自身を除く): 36917916

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 39953, 79906, 119859, 159812, 199765, 239718, 279671, 399530, 479436, 559342, 599295, 799060, 839013, 1118684, 1198590, 1398355, 1678026, 2397180, 2796710, 3356052, 4195065, 5593420, 8390130, 16780260]

約数ペア:

[(1, 16780260), (2, 8390130), (3, 5593420), (4, 4195065), (5, 3356052), (6, 2796710), (7, 2397180), (10, 1678026), (12, 1398355), (14, 1198590), (15, 1118684), (20, 839013), (21, 799060), (28, 599295), (30, 559342), (35, 479436), (42, 399530), (60, 279671), (70, 239718), (84, 199765), (105, 159812), (140, 119859), (210, 79906), (420, 39953)]