20163618320

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{4131889}}^1$

素因数の和:4131963

約数の個数: 40

約数和(自身を含む): 47648955480

約数和(自身を除く): 27485337160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 4131889, 8263778, 16527556, 20659445, 33055112, 41318890, 66110224, 82637780, 165275560, 252045229, 330551120, 504090458, 1008180916, 1260226145, 2016361832, 2520452290, 4032723664, 5040904580, 10081809160, 20163618320]

約数ペア:

[(1, 20163618320), (2, 10081809160), (4, 5040904580), (5, 4032723664), (8, 2520452290), (10, 2016361832), (16, 1260226145), (20, 1008180916), (40, 504090458), (61, 330551120), (80, 252045229), (122, 165275560), (244, 82637780), (305, 66110224), (488, 41318890), (610, 33055112), (976, 20659445), (1220, 16527556), (2440, 8263778), (4880, 4131889)]