30040780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19507}}^1$

素因数の和:19534

約数の個数: 48

約数和(自身を含む): 78656256

約数和(自身を除く): 48615476

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, 19507, 39014, 78028, 97535, 136549, 195070, 214577, 273098, 390140, 429154, 546196, 682745, 858308, 1072885, 1365490, 1502039, 2145770, 2730980, 3004078, 4291540, 6008156, 7510195, 15020390, 30040780]

約数ペア:

[(1, 30040780), (2, 15020390), (4, 7510195), (5, 6008156), (7, 4291540), (10, 3004078), (11, 2730980), (14, 2145770), (20, 1502039), (22, 1365490), (28, 1072885), (35, 858308), (44, 682745), (55, 546196), (70, 429154), (77, 390140), (110, 273098), (140, 214577), (154, 195070), (220, 136549), (308, 97535), (385, 78028), (770, 39014), (1540, 19507)]