138620020

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{11}}^2\times {\mathrm{167}}^1$

素因数の和:219

約数の個数: 144

約数和(自身を含む): 375379200

約数和(自身を除く): 236759180

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 121, 140, 154, 167, 196, 220, 242, 245, 308, 334, 343, 385, 484, 490, 539, 605, 668, 686, 770, 835, 847, 980, 1078, 1169, 1210, 1372, 1540, 1670, 1694, 1715, 1837, 2156, 2338, 2420, 2695, 3340, 3388, 3430, 3674, 3773, 4235, 4676, 5390, 5845, 5929, 6860, 7348, 7546, 8183, 8470, 9185, 10780, 11690, 11858, 12859, 15092, 16366, 16940, 18370, 18865, 20207, 23380, 23716, 25718, 29645, 32732, 36740, 37730, 40414, 40915, 41503, 51436, 57281, 59290, 64295, 75460, 80828, 81830, 83006, 90013, 101035, 114562, 118580, 128590, 141449, 163660, 166012, 180026, 202070, 207515, 229124, 257180, 282898, 286405, 360052, 404140, 415030, 450065, 565796, 572810, 630091, 707245, 830060, 900130, 990143, 1145620, 1260182, 1414490, 1800260, 1980286, 2520364, 2828980, 3150455, 3960572, 4950715, 6300910, 6931001, 9901430, 12601820, 13862002, 19802860, 27724004, 34655005, 69310010, 138620020]

約数ペア:

[(1, 138620020), (2, 69310010), (4, 34655005), (5, 27724004), (7, 19802860), (10, 13862002), (11, 12601820), (14, 9901430), (20, 6931001), (22, 6300910), (28, 4950715), (35, 3960572), (44, 3150455), (49, 2828980), (55, 2520364), (70, 1980286), (77, 1800260), (98, 1414490), (110, 1260182), (121, 1145620), (140, 990143), (154, 900130), (167, 830060), (196, 707245), (220, 630091), (242, 572810), (245, 565796), (308, 450065), (334, 415030), (343, 404140), (385, 360052), (484, 286405), (490, 282898), (539, 257180), (605, 229124), (668, 207515), (686, 202070), (770, 180026), (835, 166012), (847, 163660), (980, 141449), (1078, 128590), (1169, 118580), (1210, 114562), (1372, 101035), (1540, 90013), (1670, 83006), (1694, 81830), (1715, 80828), (1837, 75460), (2156, 64295), (2338, 59290), (2420, 57281), (2695, 51436), (3340, 41503), (3388, 40915), (3430, 40414), (3674, 37730), (3773, 36740), (4235, 32732), (4676, 29645), (5390, 25718), (5845, 23716), (5929, 23380), (6860, 20207), (7348, 18865), (7546, 18370), (8183, 16940), (8470, 16366), (9185, 15092), (10780, 12859), (11690, 11858)]