78945440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{70487}}^1$

素因数の和:70509

約数の個数: 48

約数和(自身を含む): 213155712

約数和(自身を除く): 134210272

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 70487, 140974, 281948, 352435, 493409, 563896, 704870, 986818, 1127792, 1409740, 1973636, 2255584, 2467045, 2819480, 3947272, 4934090, 5638960, 7894544, 9868180, 11277920, 15789088, 19736360, 39472720, 78945440]

約数ペア:

[(1, 78945440), (2, 39472720), (4, 19736360), (5, 15789088), (7, 11277920), (8, 9868180), (10, 7894544), (14, 5638960), (16, 4934090), (20, 3947272), (28, 2819480), (32, 2467045), (35, 2255584), (40, 1973636), (56, 1409740), (70, 1127792), (80, 986818), (112, 704870), (140, 563896), (160, 493409), (224, 352435), (280, 281948), (560, 140974), (1120, 70487)]