803146040

素因数分解:

$2^3\times 5^1\times {\mathrm{991}}^1\times {\mathrm{20261}}^1$

素因数の和:21263

約数の個数: 32

約数和(自身を含む): 1808991360

約数和(自身を除く): 1005845320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991, 1982, 3964, 4955, 7928, 9910, 19820, 20261, 39640, 40522, 81044, 101305, 162088, 202610, 405220, 810440, 20078651, 40157302, 80314604, 100393255, 160629208, 200786510, 401573020, 803146040]

約数ペア:

[(1, 803146040), (2, 401573020), (4, 200786510), (5, 160629208), (8, 100393255), (10, 80314604), (20, 40157302), (40, 20078651), (991, 810440), (1982, 405220), (3964, 202610), (4955, 162088), (7928, 101305), (9910, 81044), (19820, 40522), (20261, 39640)]