20526960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{89}}^1$

素因数の和:167

約数の個数: 120

約数和(自身を含む): 66491280

約数和(自身を除く): 45964320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 89, 93, 120, 124, 155, 178, 186, 240, 248, 267, 310, 356, 372, 445, 465, 496, 534, 620, 712, 744, 890, 930, 961, 1068, 1240, 1335, 1424, 1488, 1780, 1860, 1922, 2136, 2480, 2670, 2759, 2883, 3560, 3720, 3844, 4272, 4805, 5340, 5518, 5766, 7120, 7440, 7688, 8277, 9610, 10680, 11036, 11532, 13795, 14415, 15376, 16554, 19220, 21360, 22072, 23064, 27590, 28830, 33108, 38440, 41385, 44144, 46128, 55180, 57660, 66216, 76880, 82770, 85529, 110360, 115320, 132432, 165540, 171058, 220720, 230640, 256587, 331080, 342116, 427645, 513174, 662160, 684232, 855290, 1026348, 1282935, 1368464, 1710580, 2052696, 2565870, 3421160, 4105392, 5131740, 6842320, 10263480, 20526960]

約数ペア:

[(1, 20526960), (2, 10263480), (3, 6842320), (4, 5131740), (5, 4105392), (6, 3421160), (8, 2565870), (10, 2052696), (12, 1710580), (15, 1368464), (16, 1282935), (20, 1026348), (24, 855290), (30, 684232), (31, 662160), (40, 513174), (48, 427645), (60, 342116), (62, 331080), (80, 256587), (89, 230640), (93, 220720), (120, 171058), (124, 165540), (155, 132432), (178, 115320), (186, 110360), (240, 85529), (248, 82770), (267, 76880), (310, 66216), (356, 57660), (372, 55180), (445, 46128), (465, 44144), (496, 41385), (534, 38440), (620, 33108), (712, 28830), (744, 27590), (890, 23064), (930, 22072), (961, 21360), (1068, 19220), (1240, 16554), (1335, 15376), (1424, 14415), (1488, 13795), (1780, 11532), (1860, 11036), (1922, 10680), (2136, 9610), (2480, 8277), (2670, 7688), (2759, 7440), (2883, 7120), (3560, 5766), (3720, 5518), (3844, 5340), (4272, 4805)]