890493507

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{907}}^1$

素因数の和:990

約数の個数: 80

約数和(自身を含む): 1518815232

約数和(自身を除く): 628321725

約数列:

[1, 3, 9, 17, 23, 27, 31, 51, 69, 81, 93, 153, 207, 279, 391, 459, 527, 621, 713, 837, 907, 1173, 1377, 1581, 1863, 2139, 2511, 2721, 3519, 4743, 6417, 8163, 10557, 12121, 14229, 15419, 19251, 20861, 24489, 28117, 31671, 36363, 42687, 46257, 57753, 62583, 73467, 84351, 109089, 138771, 187749, 253053, 327267, 354637, 416313, 477989, 563247, 646691, 759159, 981801, 1063911, 1248939, 1433967, 1689741, 1940073, 2277477, 3191733, 4301901, 5820219, 9575199, 10993747, 12905703, 17460657, 28725597, 32981241, 38717109, 52381971, 98943723, 296831169, 890493507]

約数ペア:

[(1, 890493507), (3, 296831169), (9, 98943723), (17, 52381971), (23, 38717109), (27, 32981241), (31, 28725597), (51, 17460657), (69, 12905703), (81, 10993747), (93, 9575199), (153, 5820219), (207, 4301901), (279, 3191733), (391, 2277477), (459, 1940073), (527, 1689741), (621, 1433967), (713, 1248939), (837, 1063911), (907, 981801), (1173, 759159), (1377, 646691), (1581, 563247), (1863, 477989), (2139, 416313), (2511, 354637), (2721, 327267), (3519, 253053), (4743, 187749), (6417, 138771), (8163, 109089), (10557, 84351), (12121, 73467), (14229, 62583), (15419, 57753), (19251, 46257), (20861, 42687), (24489, 36363), (28117, 31671)]