81999972

素因数分解:

$2^2\times 3^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1$

素因数の和:570

約数の個数: 96

約数和(自身を含む): 226800000

約数和(自身を除く): 144800028

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 54, 57, 76, 89, 108, 114, 171, 178, 228, 267, 342, 356, 449, 513, 534, 684, 801, 898, 1026, 1068, 1347, 1602, 1691, 1796, 2052, 2403, 2694, 3204, 3382, 4041, 4806, 5073, 5388, 6764, 8082, 8531, 9612, 10146, 12123, 15219, 16164, 17062, 20292, 24246, 25593, 30438, 34124, 39961, 45657, 48492, 51186, 60876, 76779, 79922, 91314, 102372, 119883, 153558, 159844, 182628, 230337, 239766, 307116, 359649, 460674, 479532, 719298, 759259, 921348, 1078947, 1438596, 1518518, 2157894, 2277777, 3037036, 4315788, 4555554, 6833331, 9111108, 13666662, 20499993, 27333324, 40999986, 81999972]

約数ペア:

[(1, 81999972), (2, 40999986), (3, 27333324), (4, 20499993), (6, 13666662), (9, 9111108), (12, 6833331), (18, 4555554), (19, 4315788), (27, 3037036), (36, 2277777), (38, 2157894), (54, 1518518), (57, 1438596), (76, 1078947), (89, 921348), (108, 759259), (114, 719298), (171, 479532), (178, 460674), (228, 359649), (267, 307116), (342, 239766), (356, 230337), (449, 182628), (513, 159844), (534, 153558), (684, 119883), (801, 102372), (898, 91314), (1026, 79922), (1068, 76779), (1347, 60876), (1602, 51186), (1691, 48492), (1796, 45657), (2052, 39961), (2403, 34124), (2694, 30438), (3204, 25593), (3382, 24246), (4041, 20292), (4806, 17062), (5073, 16164), (5388, 15219), (6764, 12123), (8082, 10146), (8531, 9612)]