31020780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{73859}}^1$

素因数の和:73878

約数の個数: 48

約数和(自身を含む): 99267840

約数和(自身を除く): 68247060

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, 73859, 147718, 221577, 295436, 369295, 443154, 517013, 738590, 886308, 1034026, 1107885, 1477180, 1551039, 2068052, 2215770, 2585065, 3102078, 4431540, 5170130, 6204156, 7755195, 10340260, 15510390, 31020780]

約数ペア:

[(1, 31020780), (2, 15510390), (3, 10340260), (4, 7755195), (5, 6204156), (6, 5170130), (7, 4431540), (10, 3102078), (12, 2585065), (14, 2215770), (15, 2068052), (20, 1551039), (21, 1477180), (28, 1107885), (30, 1034026), (35, 886308), (42, 738590), (60, 517013), (70, 443154), (84, 369295), (105, 295436), (140, 221577), (210, 147718), (420, 73859)]