207420780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{493859}}^1$

素因数の和:493878

約数の個数: 48

約数和(自身を含む): 663747840

約数和(自身を除く): 456327060

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, 493859, 987718, 1481577, 1975436, 2469295, 2963154, 3457013, 4938590, 5926308, 6914026, 7407885, 9877180, 10371039, 13828052, 14815770, 17285065, 20742078, 29631540, 34570130, 41484156, 51855195, 69140260, 103710390, 207420780]

約数ペア:

[(1, 207420780), (2, 103710390), (3, 69140260), (4, 51855195), (5, 41484156), (6, 34570130), (7, 29631540), (10, 20742078), (12, 17285065), (14, 14815770), (15, 13828052), (20, 10371039), (21, 9877180), (28, 7407885), (30, 6914026), (35, 5926308), (42, 4938590), (60, 3457013), (70, 2963154), (84, 2469295), (105, 1975436), (140, 1481577), (210, 987718), (420, 493859)]