990081540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{785779}}^1$

素因数の和:785801

約数の個数: 72

約数和(自身を含む): 3432287040

約数和(自身を除く): 2442205500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 785779, 1571558, 2357337, 3143116, 3928895, 4714674, 5500453, 7072011, 7857790, 9429348, 11000906, 11786685, 14144022, 15715580, 16501359, 22001812, 23573370, 27502265, 28288044, 33002718, 35360055, 47146740, 49504077, 55004530, 66005436, 70720110, 82506795, 99008154, 110009060, 141440220, 165013590, 198016308, 247520385, 330027180, 495040770, 990081540]

約数ペア:

[(1, 990081540), (2, 495040770), (3, 330027180), (4, 247520385), (5, 198016308), (6, 165013590), (7, 141440220), (9, 110009060), (10, 99008154), (12, 82506795), (14, 70720110), (15, 66005436), (18, 55004530), (20, 49504077), (21, 47146740), (28, 35360055), (30, 33002718), (35, 28288044), (36, 27502265), (42, 23573370), (45, 22001812), (60, 16501359), (63, 15715580), (70, 14144022), (84, 11786685), (90, 11000906), (105, 9429348), (126, 7857790), (140, 7072011), (180, 5500453), (210, 4714674), (252, 3928895), (315, 3143116), (420, 2357337), (630, 1571558), (1260, 785779)]