18681840

素因数分解:

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

素因数の和:90

約数の個数: 180

約数和(自身を含む): 67230072

約数和(自身を除く): 48548232

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, 81, 90, 93, 108, 120, 124, 135, 144, 155, 162, 180, 186, 216, 240, 243, 248, 270, 279, 310, 324, 360, 372, 405, 432, 465, 486, 496, 540, 558, 620, 648, 720, 744, 810, 837, 930, 961, 972, 1080, 1116, 1215, 1240, 1296, 1395, 1488, 1620, 1674, 1860, 1922, 1944, 2160, 2232, 2430, 2480, 2511, 2790, 2883, 3240, 3348, 3720, 3844, 3888, 4185, 4464, 4805, 4860, 5022, 5580, 5766, 6480, 6696, 7440, 7533, 7688, 8370, 8649, 9610, 9720, 10044, 11160, 11532, 12555, 13392, 14415, 15066, 15376, 16740, 17298, 19220, 19440, 20088, 22320, 23064, 25110, 25947, 28830, 30132, 33480, 34596, 37665, 38440, 40176, 43245, 46128, 50220, 51894, 57660, 60264, 66960, 69192, 75330, 76880, 77841, 86490, 100440, 103788, 115320, 120528, 129735, 138384, 150660, 155682, 172980, 200880, 207576, 230640, 233523, 259470, 301320, 311364, 345960, 389205, 415152, 467046, 518940, 602640, 622728, 691920, 778410, 934092, 1037880, 1167615, 1245456, 1556820, 1868184, 2075760, 2335230, 3113640, 3736368, 4670460, 6227280, 9340920, 18681840]

約数ペア:

[(1, 18681840), (2, 9340920), (3, 6227280), (4, 4670460), (5, 3736368), (6, 3113640), (8, 2335230), (9, 2075760), (10, 1868184), (12, 1556820), (15, 1245456), (16, 1167615), (18, 1037880), (20, 934092), (24, 778410), (27, 691920), (30, 622728), (31, 602640), (36, 518940), (40, 467046), (45, 415152), (48, 389205), (54, 345960), (60, 311364), (62, 301320), (72, 259470), (80, 233523), (81, 230640), (90, 207576), (93, 200880), (108, 172980), (120, 155682), (124, 150660), (135, 138384), (144, 129735), (155, 120528), (162, 115320), (180, 103788), (186, 100440), (216, 86490), (240, 77841), (243, 76880), (248, 75330), (270, 69192), (279, 66960), (310, 60264), (324, 57660), (360, 51894), (372, 50220), (405, 46128), (432, 43245), (465, 40176), (486, 38440), (496, 37665), (540, 34596), (558, 33480), (620, 30132), (648, 28830), (720, 25947), (744, 25110), (810, 23064), (837, 22320), (930, 20088), (961, 19440), (972, 19220), (1080, 17298), (1116, 16740), (1215, 15376), (1240, 15066), (1296, 14415), (1395, 13392), (1488, 12555), (1620, 11532), (1674, 11160), (1860, 10044), (1922, 9720), (1944, 9610), (2160, 8649), (2232, 8370), (2430, 7688), (2480, 7533), (2511, 7440), (2790, 6696), (2883, 6480), (3240, 5766), (3348, 5580), (3720, 5022), (3844, 4860), (3888, 4805), (4185, 4464)]