20824560

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:364

約数の個数: 160

約数和(自身を含む): 74280960

約数和(自身を除く): 53456400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 36, 40, 45, 48, 54, 60, 62, 72, 80, 90, 93, 108, 120, 124, 135, 144, 155, 180, 186, 216, 240, 248, 270, 279, 310, 311, 360, 372, 432, 465, 496, 540, 558, 620, 622, 720, 744, 837, 930, 933, 1080, 1116, 1240, 1244, 1395, 1488, 1555, 1674, 1860, 1866, 2160, 2232, 2480, 2488, 2790, 2799, 3110, 3348, 3720, 3732, 4185, 4464, 4665, 4976, 5580, 5598, 6220, 6696, 7440, 7464, 8370, 8397, 9330, 9641, 11160, 11196, 12440, 13392, 13995, 14928, 16740, 16794, 18660, 19282, 22320, 22392, 24880, 27990, 28923, 33480, 33588, 37320, 38564, 41985, 44784, 48205, 55980, 57846, 66960, 67176, 74640, 77128, 83970, 86769, 96410, 111960, 115692, 134352, 144615, 154256, 167940, 173538, 192820, 223920, 231384, 260307, 289230, 335880, 347076, 385640, 433845, 462768, 520614, 578460, 671760, 694152, 771280, 867690, 1041228, 1156920, 1301535, 1388304, 1735380, 2082456, 2313840, 2603070, 3470760, 4164912, 5206140, 6941520, 10412280, 20824560]

約数ペア:

[(1, 20824560), (2, 10412280), (3, 6941520), (4, 5206140), (5, 4164912), (6, 3470760), (8, 2603070), (9, 2313840), (10, 2082456), (12, 1735380), (15, 1388304), (16, 1301535), (18, 1156920), (20, 1041228), (24, 867690), (27, 771280), (30, 694152), (31, 671760), (36, 578460), (40, 520614), (45, 462768), (48, 433845), (54, 385640), (60, 347076), (62, 335880), (72, 289230), (80, 260307), (90, 231384), (93, 223920), (108, 192820), (120, 173538), (124, 167940), (135, 154256), (144, 144615), (155, 134352), (180, 115692), (186, 111960), (216, 96410), (240, 86769), (248, 83970), (270, 77128), (279, 74640), (310, 67176), (311, 66960), (360, 57846), (372, 55980), (432, 48205), (465, 44784), (496, 41985), (540, 38564), (558, 37320), (620, 33588), (622, 33480), (720, 28923), (744, 27990), (837, 24880), (930, 22392), (933, 22320), (1080, 19282), (1116, 18660), (1240, 16794), (1244, 16740), (1395, 14928), (1488, 13995), (1555, 13392), (1674, 12440), (1860, 11196), (1866, 11160), (2160, 9641), (2232, 9330), (2480, 8397), (2488, 8370), (2790, 7464), (2799, 7440), (3110, 6696), (3348, 6220), (3720, 5598), (3732, 5580), (4185, 4976), (4464, 4665)]