28141820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{3407}}^1$

素因数の和:3482

約数の個数: 48

約数和(自身を含む): 68705280

約数和(自身を除く): 40563460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 59, 70, 118, 140, 236, 295, 413, 590, 826, 1180, 1652, 2065, 3407, 4130, 6814, 8260, 13628, 17035, 23849, 34070, 47698, 68140, 95396, 119245, 201013, 238490, 402026, 476980, 804052, 1005065, 1407091, 2010130, 2814182, 4020260, 5628364, 7035455, 14070910, 28141820]

約数ペア:

[(1, 28141820), (2, 14070910), (4, 7035455), (5, 5628364), (7, 4020260), (10, 2814182), (14, 2010130), (20, 1407091), (28, 1005065), (35, 804052), (59, 476980), (70, 402026), (118, 238490), (140, 201013), (236, 119245), (295, 95396), (413, 68140), (590, 47698), (826, 34070), (1180, 23849), (1652, 17035), (2065, 13628), (3407, 8260), (4130, 6814)]