857241220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{54881}}^1$

素因数の和:54972

約数の個数: 48

約数和(自身を含む): 1991558016

約数和(自身を除く): 1134316796

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3905, 7810, 15620, 54881, 109762, 219524, 274405, 548810, 603691, 1097620, 1207382, 2414764, 3018455, 3896551, 6036910, 7793102, 12073820, 15586204, 19482755, 38965510, 42862061, 77931020, 85724122, 171448244, 214310305, 428620610, 857241220]

約数ペア:

[(1, 857241220), (2, 428620610), (4, 214310305), (5, 171448244), (10, 85724122), (11, 77931020), (20, 42862061), (22, 38965510), (44, 19482755), (55, 15586204), (71, 12073820), (110, 7793102), (142, 6036910), (220, 3896551), (284, 3018455), (355, 2414764), (710, 1207382), (781, 1097620), (1420, 603691), (1562, 548810), (3124, 274405), (3905, 219524), (7810, 109762), (15620, 54881)]