20020108640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17875097}}^1$

素因数の和:17875119

約数の個数: 48

約数和(自身を含む): 54054296352

約数和(自身を除く): 34034187712

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, 17875097, 35750194, 71500388, 89375485, 125125679, 143000776, 178750970, 250251358, 286001552, 357501940, 500502716, 572003104, 625628395, 715003880, 1001005432, 1251256790, 1430007760, 2002010864, 2502513580, 2860015520, 4004021728, 5005027160, 10010054320, 20020108640]

約数ペア:

[(1, 20020108640), (2, 10010054320), (4, 5005027160), (5, 4004021728), (7, 2860015520), (8, 2502513580), (10, 2002010864), (14, 1430007760), (16, 1251256790), (20, 1001005432), (28, 715003880), (32, 625628395), (35, 572003104), (40, 500502716), (56, 357501940), (70, 286001552), (80, 250251358), (112, 178750970), (140, 143000776), (160, 125125679), (224, 89375485), (280, 71500388), (560, 35750194), (1120, 17875097)]