811021900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:308

約数の個数: 144

約数和(自身を含む): 1968624000

約数和(自身を除く): 1157602100

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 53, 65, 79, 100, 106, 130, 149, 158, 212, 260, 265, 298, 316, 325, 395, 530, 596, 650, 689, 745, 790, 1027, 1060, 1300, 1325, 1378, 1490, 1580, 1937, 1975, 2054, 2650, 2756, 2980, 3445, 3725, 3874, 3950, 4108, 4187, 5135, 5300, 6890, 7450, 7748, 7897, 7900, 8374, 9685, 10270, 11771, 13780, 14900, 15794, 16748, 17225, 19370, 20540, 20935, 23542, 25675, 31588, 34450, 38740, 39485, 41870, 47084, 48425, 51350, 54431, 58855, 68900, 78970, 83740, 96850, 102661, 102700, 104675, 108862, 117710, 153023, 157940, 193700, 197425, 205322, 209350, 217724, 235420, 272155, 294275, 306046, 394850, 410644, 418700, 513305, 544310, 588550, 612092, 623863, 765115, 789700, 1026610, 1088620, 1177100, 1247726, 1360775, 1530230, 2053220, 2495452, 2566525, 2721550, 3060460, 3119315, 3825575, 5133050, 5443100, 6238630, 7651150, 8110219, 10266100, 12477260, 15302300, 15596575, 16220438, 31193150, 32440876, 40551095, 62386300, 81102190, 162204380, 202755475, 405510950, 811021900]

約数ペア:

[(1, 811021900), (2, 405510950), (4, 202755475), (5, 162204380), (10, 81102190), (13, 62386300), (20, 40551095), (25, 32440876), (26, 31193150), (50, 16220438), (52, 15596575), (53, 15302300), (65, 12477260), (79, 10266100), (100, 8110219), (106, 7651150), (130, 6238630), (149, 5443100), (158, 5133050), (212, 3825575), (260, 3119315), (265, 3060460), (298, 2721550), (316, 2566525), (325, 2495452), (395, 2053220), (530, 1530230), (596, 1360775), (650, 1247726), (689, 1177100), (745, 1088620), (790, 1026610), (1027, 789700), (1060, 765115), (1300, 623863), (1325, 612092), (1378, 588550), (1490, 544310), (1580, 513305), (1937, 418700), (1975, 410644), (2054, 394850), (2650, 306046), (2756, 294275), (2980, 272155), (3445, 235420), (3725, 217724), (3874, 209350), (3950, 205322), (4108, 197425), (4187, 193700), (5135, 157940), (5300, 153023), (6890, 117710), (7450, 108862), (7748, 104675), (7897, 102700), (7900, 102661), (8374, 96850), (9685, 83740), (10270, 78970), (11771, 68900), (13780, 58855), (14900, 54431), (15794, 51350), (16748, 48425), (17225, 47084), (19370, 41870), (20540, 39485), (20935, 38740), (23542, 34450), (25675, 31588)]