67984980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{161869}}^1$

素因数の和:161888

約数の個数: 48

約数和(自身を含む): 217553280

約数和(自身を除く): 149568300

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, 161869, 323738, 485607, 647476, 809345, 971214, 1133083, 1618690, 1942428, 2266166, 2428035, 3237380, 3399249, 4532332, 4856070, 5665415, 6798498, 9712140, 11330830, 13596996, 16996245, 22661660, 33992490, 67984980]

約数ペア:

[(1, 67984980), (2, 33992490), (3, 22661660), (4, 16996245), (5, 13596996), (6, 11330830), (7, 9712140), (10, 6798498), (12, 5665415), (14, 4856070), (15, 4532332), (20, 3399249), (21, 3237380), (28, 2428035), (30, 2266166), (35, 1942428), (42, 1618690), (60, 1133083), (70, 971214), (84, 809345), (105, 647476), (140, 485607), (210, 323738), (420, 161869)]