21871800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{419}}^1$

素因数の和:470

約数の個数: 144

約数和(自身を含む): 76167000

約数和(自身を除く): 54295200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 29, 30, 36, 40, 45, 50, 58, 60, 72, 75, 87, 90, 100, 116, 120, 145, 150, 174, 180, 200, 225, 232, 261, 290, 300, 348, 360, 419, 435, 450, 522, 580, 600, 696, 725, 838, 870, 900, 1044, 1160, 1257, 1305, 1450, 1676, 1740, 1800, 2088, 2095, 2175, 2514, 2610, 2900, 3352, 3480, 3771, 4190, 4350, 5028, 5220, 5800, 6285, 6525, 7542, 8380, 8700, 10056, 10440, 10475, 12151, 12570, 13050, 15084, 16760, 17400, 18855, 20950, 24302, 25140, 26100, 30168, 31425, 36453, 37710, 41900, 48604, 50280, 52200, 60755, 62850, 72906, 75420, 83800, 94275, 97208, 109359, 121510, 125700, 145812, 150840, 182265, 188550, 218718, 243020, 251400, 291624, 303775, 364530, 377100, 437436, 486040, 546795, 607550, 729060, 754200, 874872, 911325, 1093590, 1215100, 1458120, 1822650, 2187180, 2430200, 2733975, 3645300, 4374360, 5467950, 7290600, 10935900, 21871800]

約数ペア:

[(1, 21871800), (2, 10935900), (3, 7290600), (4, 5467950), (5, 4374360), (6, 3645300), (8, 2733975), (9, 2430200), (10, 2187180), (12, 1822650), (15, 1458120), (18, 1215100), (20, 1093590), (24, 911325), (25, 874872), (29, 754200), (30, 729060), (36, 607550), (40, 546795), (45, 486040), (50, 437436), (58, 377100), (60, 364530), (72, 303775), (75, 291624), (87, 251400), (90, 243020), (100, 218718), (116, 188550), (120, 182265), (145, 150840), (150, 145812), (174, 125700), (180, 121510), (200, 109359), (225, 97208), (232, 94275), (261, 83800), (290, 75420), (300, 72906), (348, 62850), (360, 60755), (419, 52200), (435, 50280), (450, 48604), (522, 41900), (580, 37710), (600, 36453), (696, 31425), (725, 30168), (838, 26100), (870, 25140), (900, 24302), (1044, 20950), (1160, 18855), (1257, 17400), (1305, 16760), (1450, 15084), (1676, 13050), (1740, 12570), (1800, 12151), (2088, 10475), (2095, 10440), (2175, 10056), (2514, 8700), (2610, 8380), (2900, 7542), (3352, 6525), (3480, 6285), (3771, 5800), (4190, 5220), (4350, 5028)]