78480780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{186859}}^1$

素因数の和:186878

約数の個数: 48

約数和(自身を含む): 251139840

約数和(自身を除く): 172659060

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, 186859, 373718, 560577, 747436, 934295, 1121154, 1308013, 1868590, 2242308, 2616026, 2802885, 3737180, 3924039, 5232052, 5605770, 6540065, 7848078, 11211540, 13080130, 15696156, 19620195, 26160260, 39240390, 78480780]

約数ペア:

[(1, 78480780), (2, 39240390), (3, 26160260), (4, 19620195), (5, 15696156), (6, 13080130), (7, 11211540), (10, 7848078), (12, 6540065), (14, 5605770), (15, 5232052), (20, 3924039), (21, 3737180), (28, 2802885), (30, 2616026), (35, 2242308), (42, 1868590), (60, 1308013), (70, 1121154), (84, 934295), (105, 747436), (140, 560577), (210, 373718), (420, 186859)]