21689280

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{443}}^1$

素因数の和:483

約数の個数: 168

約数和(自身を含む): 79168752

約数和(自身を除く): 57479472

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 32, 34, 36, 40, 45, 48, 51, 60, 64, 68, 72, 80, 85, 90, 96, 102, 120, 136, 144, 153, 160, 170, 180, 192, 204, 240, 255, 272, 288, 306, 320, 340, 360, 408, 443, 480, 510, 544, 576, 612, 680, 720, 765, 816, 886, 960, 1020, 1088, 1224, 1329, 1360, 1440, 1530, 1632, 1772, 2040, 2215, 2448, 2658, 2720, 2880, 3060, 3264, 3544, 3987, 4080, 4430, 4896, 5316, 5440, 6120, 6645, 7088, 7531, 7974, 8160, 8860, 9792, 10632, 12240, 13290, 14176, 15062, 15948, 16320, 17720, 19935, 21264, 22593, 24480, 26580, 28352, 30124, 31896, 35440, 37655, 39870, 42528, 45186, 48960, 53160, 60248, 63792, 67779, 70880, 75310, 79740, 85056, 90372, 106320, 112965, 120496, 127584, 135558, 141760, 150620, 159480, 180744, 212640, 225930, 240992, 255168, 271116, 301240, 318960, 338895, 361488, 425280, 451860, 481984, 542232, 602480, 637920, 677790, 722976, 903720, 1084464, 1204960, 1275840, 1355580, 1445952, 1807440, 2168928, 2409920, 2711160, 3614880, 4337856, 5422320, 7229760, 10844640, 21689280]

約数ペア:

[(1, 21689280), (2, 10844640), (3, 7229760), (4, 5422320), (5, 4337856), (6, 3614880), (8, 2711160), (9, 2409920), (10, 2168928), (12, 1807440), (15, 1445952), (16, 1355580), (17, 1275840), (18, 1204960), (20, 1084464), (24, 903720), (30, 722976), (32, 677790), (34, 637920), (36, 602480), (40, 542232), (45, 481984), (48, 451860), (51, 425280), (60, 361488), (64, 338895), (68, 318960), (72, 301240), (80, 271116), (85, 255168), (90, 240992), (96, 225930), (102, 212640), (120, 180744), (136, 159480), (144, 150620), (153, 141760), (160, 135558), (170, 127584), (180, 120496), (192, 112965), (204, 106320), (240, 90372), (255, 85056), (272, 79740), (288, 75310), (306, 70880), (320, 67779), (340, 63792), (360, 60248), (408, 53160), (443, 48960), (480, 45186), (510, 42528), (544, 39870), (576, 37655), (612, 35440), (680, 31896), (720, 30124), (765, 28352), (816, 26580), (886, 24480), (960, 22593), (1020, 21264), (1088, 19935), (1224, 17720), (1329, 16320), (1360, 15948), (1440, 15062), (1530, 14176), (1632, 13290), (1772, 12240), (2040, 10632), (2215, 9792), (2448, 8860), (2658, 8160), (2720, 7974), (2880, 7531), (3060, 7088), (3264, 6645), (3544, 6120), (3987, 5440), (4080, 5316), (4430, 4896)]