321431436

素因数分解:

$2^2\times 3^3\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{163}}^1$

素因数の和:257

約数の個数: 144

約数和(自身を含む): 911971200

約数和(自身を除く): 590539764

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 31, 36, 38, 54, 57, 62, 76, 93, 108, 114, 124, 163, 171, 186, 228, 279, 326, 342, 372, 489, 513, 558, 589, 652, 684, 837, 961, 978, 1026, 1116, 1178, 1467, 1674, 1767, 1922, 1956, 2052, 2356, 2883, 2934, 3097, 3348, 3534, 3844, 4401, 5053, 5301, 5766, 5868, 6194, 7068, 8649, 8802, 9291, 10106, 10602, 11532, 12388, 15159, 15903, 17298, 17604, 18259, 18582, 20212, 21204, 25947, 27873, 30318, 31806, 34596, 36518, 37164, 45477, 51894, 54777, 55746, 60636, 63612, 73036, 83619, 90954, 96007, 103788, 109554, 111492, 136431, 156643, 164331, 167238, 181908, 192014, 219108, 272862, 288021, 313286, 328662, 334476, 384028, 469929, 492993, 545724, 576042, 626572, 657324, 864063, 939858, 985986, 1152084, 1409787, 1728126, 1879716, 1971972, 2592189, 2819574, 2976217, 3456252, 4229361, 5184378, 5639148, 5952434, 8458722, 8928651, 10368756, 11904868, 16917444, 17857302, 26785953, 35714604, 53571906, 80357859, 107143812, 160715718, 321431436]

約数ペア:

[(1, 321431436), (2, 160715718), (3, 107143812), (4, 80357859), (6, 53571906), (9, 35714604), (12, 26785953), (18, 17857302), (19, 16917444), (27, 11904868), (31, 10368756), (36, 8928651), (38, 8458722), (54, 5952434), (57, 5639148), (62, 5184378), (76, 4229361), (93, 3456252), (108, 2976217), (114, 2819574), (124, 2592189), (163, 1971972), (171, 1879716), (186, 1728126), (228, 1409787), (279, 1152084), (326, 985986), (342, 939858), (372, 864063), (489, 657324), (513, 626572), (558, 576042), (589, 545724), (652, 492993), (684, 469929), (837, 384028), (961, 334476), (978, 328662), (1026, 313286), (1116, 288021), (1178, 272862), (1467, 219108), (1674, 192014), (1767, 181908), (1922, 167238), (1956, 164331), (2052, 156643), (2356, 136431), (2883, 111492), (2934, 109554), (3097, 103788), (3348, 96007), (3534, 90954), (3844, 83619), (4401, 73036), (5053, 63612), (5301, 60636), (5766, 55746), (5868, 54777), (6194, 51894), (7068, 45477), (8649, 37164), (8802, 36518), (9291, 34596), (10106, 31806), (10602, 30318), (11532, 27873), (12388, 25947), (15159, 21204), (15903, 20212), (17298, 18582), (17604, 18259)]