20386740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:142

約数の個数: 192

約数和(自身を含む): 69672960

約数和(自身を除く): 49286220

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 20, 22, 23, 30, 33, 34, 44, 46, 51, 55, 60, 66, 68, 69, 79, 85, 92, 102, 110, 115, 132, 138, 158, 165, 170, 187, 204, 220, 230, 237, 253, 255, 276, 316, 330, 340, 345, 374, 391, 395, 460, 474, 506, 510, 561, 660, 690, 748, 759, 782, 790, 869, 935, 948, 1012, 1020, 1122, 1173, 1185, 1265, 1343, 1380, 1518, 1564, 1580, 1738, 1817, 1870, 1955, 2244, 2346, 2370, 2530, 2607, 2686, 2805, 3036, 3476, 3634, 3740, 3795, 3910, 4029, 4301, 4345, 4692, 4740, 5060, 5214, 5372, 5451, 5610, 5865, 6715, 7268, 7590, 7820, 8058, 8602, 8690, 9085, 10428, 10902, 11220, 11730, 12903, 13035, 13430, 14773, 15180, 16116, 17204, 17380, 18170, 19987, 20145, 21505, 21804, 23460, 25806, 26070, 26860, 27255, 29546, 30889, 36340, 39974, 40290, 43010, 44319, 51612, 52140, 54510, 59092, 59961, 61778, 64515, 73865, 79948, 80580, 86020, 88638, 92667, 99935, 109020, 119922, 123556, 129030, 147730, 154445, 177276, 185334, 199870, 221595, 239844, 258060, 295460, 299805, 308890, 339779, 370668, 399740, 443190, 463335, 599610, 617780, 679558, 886380, 926670, 1019337, 1199220, 1359116, 1698895, 1853340, 2038674, 3397790, 4077348, 5096685, 6795580, 10193370, 20386740]

約数ペア:

[(1, 20386740), (2, 10193370), (3, 6795580), (4, 5096685), (5, 4077348), (6, 3397790), (10, 2038674), (11, 1853340), (12, 1698895), (15, 1359116), (17, 1199220), (20, 1019337), (22, 926670), (23, 886380), (30, 679558), (33, 617780), (34, 599610), (44, 463335), (46, 443190), (51, 399740), (55, 370668), (60, 339779), (66, 308890), (68, 299805), (69, 295460), (79, 258060), (85, 239844), (92, 221595), (102, 199870), (110, 185334), (115, 177276), (132, 154445), (138, 147730), (158, 129030), (165, 123556), (170, 119922), (187, 109020), (204, 99935), (220, 92667), (230, 88638), (237, 86020), (253, 80580), (255, 79948), (276, 73865), (316, 64515), (330, 61778), (340, 59961), (345, 59092), (374, 54510), (391, 52140), (395, 51612), (460, 44319), (474, 43010), (506, 40290), (510, 39974), (561, 36340), (660, 30889), (690, 29546), (748, 27255), (759, 26860), (782, 26070), (790, 25806), (869, 23460), (935, 21804), (948, 21505), (1012, 20145), (1020, 19987), (1122, 18170), (1173, 17380), (1185, 17204), (1265, 16116), (1343, 15180), (1380, 14773), (1518, 13430), (1564, 13035), (1580, 12903), (1738, 11730), (1817, 11220), (1870, 10902), (1955, 10428), (2244, 9085), (2346, 8690), (2370, 8602), (2530, 8058), (2607, 7820), (2686, 7590), (2805, 7268), (3036, 6715), (3476, 5865), (3634, 5610), (3740, 5451), (3795, 5372), (3910, 5214), (4029, 5060), (4301, 4740), (4345, 4692)]