30980180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20117}}^1$

素因数の和:20144

約数の個数: 48

約数和(自身を含む): 81115776

約数和(自身を除く): 50135596

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 20117, 40234, 80468, 100585, 140819, 201170, 221287, 281638, 402340, 442574, 563276, 704095, 885148, 1106435, 1408190, 1549009, 2212870, 2816380, 3098018, 4425740, 6196036, 7745045, 15490090, 30980180]

約数ペア:

[(1, 30980180), (2, 15490090), (4, 7745045), (5, 6196036), (7, 4425740), (10, 3098018), (11, 2816380), (14, 2212870), (20, 1549009), (22, 1408190), (28, 1106435), (35, 885148), (44, 704095), (55, 563276), (70, 442574), (77, 402340), (110, 281638), (140, 221287), (154, 201170), (220, 140819), (308, 100585), (385, 80468), (770, 40234), (1540, 20117)]