28861920

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1$

素因数の和:175

約数の個数: 240

約数和(自身を含む): 108673488

約数和(自身を除く): 79811568

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 32, 34, 36, 40, 45, 48, 51, 54, 60, 68, 72, 80, 81, 85, 90, 96, 102, 108, 120, 131, 135, 136, 144, 153, 160, 162, 170, 180, 204, 216, 240, 255, 262, 270, 272, 288, 306, 324, 340, 360, 393, 405, 408, 432, 459, 480, 510, 524, 540, 544, 612, 648, 655, 680, 720, 765, 786, 810, 816, 864, 918, 1020, 1048, 1080, 1179, 1224, 1296, 1310, 1360, 1377, 1440, 1530, 1572, 1620, 1632, 1836, 1965, 2040, 2096, 2160, 2227, 2295, 2358, 2448, 2592, 2620, 2720, 2754, 3060, 3144, 3240, 3537, 3672, 3930, 4080, 4192, 4320, 4454, 4590, 4716, 4896, 5240, 5508, 5895, 6120, 6288, 6480, 6681, 6885, 7074, 7344, 7860, 8160, 8908, 9180, 9432, 10480, 10611, 11016, 11135, 11790, 12240, 12576, 12960, 13362, 13770, 14148, 14688, 15720, 17685, 17816, 18360, 18864, 20043, 20960, 21222, 22032, 22270, 23580, 24480, 26724, 27540, 28296, 31440, 33405, 35370, 35632, 36720, 37728, 40086, 42444, 44064, 44540, 47160, 53055, 53448, 55080, 56592, 60129, 62880, 66810, 70740, 71264, 73440, 80172, 84888, 89080, 94320, 100215, 106110, 106896, 110160, 113184, 120258, 133620, 141480, 160344, 169776, 178160, 180387, 188640, 200430, 212220, 213792, 220320, 240516, 267240, 282960, 300645, 320688, 339552, 356320, 360774, 400860, 424440, 481032, 534480, 565920, 601290, 641376, 721548, 801720, 848880, 901935, 962064, 1068960, 1202580, 1443096, 1603440, 1697760, 1803870, 1924128, 2405160, 2886192, 3206880, 3607740, 4810320, 5772384, 7215480, 9620640, 14430960, 28861920]

約数ペア:

[(1, 28861920), (2, 14430960), (3, 9620640), (4, 7215480), (5, 5772384), (6, 4810320), (8, 3607740), (9, 3206880), (10, 2886192), (12, 2405160), (15, 1924128), (16, 1803870), (17, 1697760), (18, 1603440), (20, 1443096), (24, 1202580), (27, 1068960), (30, 962064), (32, 901935), (34, 848880), (36, 801720), (40, 721548), (45, 641376), (48, 601290), (51, 565920), (54, 534480), (60, 481032), (68, 424440), (72, 400860), (80, 360774), (81, 356320), (85, 339552), (90, 320688), (96, 300645), (102, 282960), (108, 267240), (120, 240516), (131, 220320), (135, 213792), (136, 212220), (144, 200430), (153, 188640), (160, 180387), (162, 178160), (170, 169776), (180, 160344), (204, 141480), (216, 133620), (240, 120258), (255, 113184), (262, 110160), (270, 106896), (272, 106110), (288, 100215), (306, 94320), (324, 89080), (340, 84888), (360, 80172), (393, 73440), (405, 71264), (408, 70740), (432, 66810), (459, 62880), (480, 60129), (510, 56592), (524, 55080), (540, 53448), (544, 53055), (612, 47160), (648, 44540), (655, 44064), (680, 42444), (720, 40086), (765, 37728), (786, 36720), (810, 35632), (816, 35370), (864, 33405), (918, 31440), (1020, 28296), (1048, 27540), (1080, 26724), (1179, 24480), (1224, 23580), (1296, 22270), (1310, 22032), (1360, 21222), (1377, 20960), (1440, 20043), (1530, 18864), (1572, 18360), (1620, 17816), (1632, 17685), (1836, 15720), (1965, 14688), (2040, 14148), (2096, 13770), (2160, 13362), (2227, 12960), (2295, 12576), (2358, 12240), (2448, 11790), (2592, 11135), (2620, 11016), (2720, 10611), (2754, 10480), (3060, 9432), (3144, 9180), (3240, 8908), (3537, 8160), (3672, 7860), (3930, 7344), (4080, 7074), (4192, 6885), (4320, 6681), (4454, 6480), (4590, 6288), (4716, 6120), (4896, 5895), (5240, 5508)]