21381600

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{59}}^1\times {\mathrm{151}}^1$

素因数の和:233

約数の個数: 144

約数和(自身を含む): 71245440

約数和(自身を除く): 49863840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 59, 60, 75, 80, 96, 100, 118, 120, 150, 151, 160, 177, 200, 236, 240, 295, 300, 302, 354, 400, 453, 472, 480, 590, 600, 604, 708, 755, 800, 885, 906, 944, 1180, 1200, 1208, 1416, 1475, 1510, 1770, 1812, 1888, 2265, 2360, 2400, 2416, 2832, 2950, 3020, 3540, 3624, 3775, 4425, 4530, 4720, 4832, 5664, 5900, 6040, 7080, 7248, 7550, 8850, 8909, 9060, 9440, 11325, 11800, 12080, 14160, 14496, 15100, 17700, 17818, 18120, 22650, 23600, 24160, 26727, 28320, 30200, 35400, 35636, 36240, 44545, 45300, 47200, 53454, 60400, 70800, 71272, 72480, 89090, 90600, 106908, 120800, 133635, 141600, 142544, 178180, 181200, 213816, 222725, 267270, 285088, 356360, 362400, 427632, 445450, 534540, 668175, 712720, 855264, 890900, 1069080, 1336350, 1425440, 1781800, 2138160, 2672700, 3563600, 4276320, 5345400, 7127200, 10690800, 21381600]

約数ペア:

[(1, 21381600), (2, 10690800), (3, 7127200), (4, 5345400), (5, 4276320), (6, 3563600), (8, 2672700), (10, 2138160), (12, 1781800), (15, 1425440), (16, 1336350), (20, 1069080), (24, 890900), (25, 855264), (30, 712720), (32, 668175), (40, 534540), (48, 445450), (50, 427632), (59, 362400), (60, 356360), (75, 285088), (80, 267270), (96, 222725), (100, 213816), (118, 181200), (120, 178180), (150, 142544), (151, 141600), (160, 133635), (177, 120800), (200, 106908), (236, 90600), (240, 89090), (295, 72480), (300, 71272), (302, 70800), (354, 60400), (400, 53454), (453, 47200), (472, 45300), (480, 44545), (590, 36240), (600, 35636), (604, 35400), (708, 30200), (755, 28320), (800, 26727), (885, 24160), (906, 23600), (944, 22650), (1180, 18120), (1200, 17818), (1208, 17700), (1416, 15100), (1475, 14496), (1510, 14160), (1770, 12080), (1812, 11800), (1888, 11325), (2265, 9440), (2360, 9060), (2400, 8909), (2416, 8850), (2832, 7550), (2950, 7248), (3020, 7080), (3540, 6040), (3624, 5900), (3775, 5664), (4425, 4832), (4530, 4720)]