28421280

素因数分解:

$2^5\times 3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:90

約数の個数: 288

約数和(自身を含む): 108972864

約数和(自身を除く): 80551584

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, 43, 45, 48, 51, 54, 60, 68, 72, 80, 81, 85, 86, 90, 96, 102, 108, 120, 129, 135, 136, 144, 153, 160, 162, 170, 172, 180, 204, 215, 216, 240, 243, 255, 258, 270, 272, 288, 306, 324, 340, 344, 360, 387, 405, 408, 430, 432, 459, 480, 486, 510, 516, 540, 544, 612, 645, 648, 680, 688, 720, 731, 765, 774, 810, 816, 860, 864, 918, 972, 1020, 1032, 1080, 1161, 1215, 1224, 1290, 1296, 1360, 1376, 1377, 1440, 1462, 1530, 1548, 1620, 1632, 1720, 1836, 1935, 1944, 2040, 2064, 2160, 2193, 2295, 2322, 2430, 2448, 2580, 2592, 2720, 2754, 2924, 3060, 3096, 3240, 3440, 3483, 3655, 3672, 3870, 3888, 4080, 4128, 4131, 4320, 4386, 4590, 4644, 4860, 4896, 5160, 5508, 5805, 5848, 6120, 6192, 6480, 6579, 6880, 6885, 6966, 7310, 7344, 7740, 7776, 8160, 8262, 8772, 9180, 9288, 9720, 10320, 10449, 10965, 11016, 11610, 11696, 12240, 12384, 12960, 13158, 13770, 13932, 14620, 14688, 15480, 16524, 17415, 17544, 18360, 18576, 19440, 19737, 20640, 20655, 20898, 21930, 22032, 23220, 23392, 24480, 26316, 27540, 27864, 29240, 30960, 32895, 33048, 34830, 35088, 36720, 37152, 38880, 39474, 41310, 41796, 43860, 44064, 46440, 52245, 52632, 55080, 55728, 58480, 59211, 61920, 65790, 66096, 69660, 70176, 73440, 78948, 82620, 83592, 87720, 92880, 98685, 104490, 105264, 110160, 111456, 116960, 118422, 131580, 132192, 139320, 157896, 165240, 167184, 175440, 177633, 185760, 197370, 208980, 210528, 220320, 236844, 263160, 278640, 296055, 315792, 330480, 334368, 350880, 355266, 394740, 417960, 473688, 526320, 557280, 592110, 631584, 660960, 710532, 789480, 835920, 888165, 947376, 1052640, 1184220, 1421064, 1578960, 1671840, 1776330, 1894752, 2368440, 2842128, 3157920, 3552660, 4736880, 5684256, 7105320, 9473760, 14210640, 28421280]

約数ペア:

[(1, 28421280), (2, 14210640), (3, 9473760), (4, 7105320), (5, 5684256), (6, 4736880), (8, 3552660), (9, 3157920), (10, 2842128), (12, 2368440), (15, 1894752), (16, 1776330), (17, 1671840), (18, 1578960), (20, 1421064), (24, 1184220), (27, 1052640), (30, 947376), (32, 888165), (34, 835920), (36, 789480), (40, 710532), (43, 660960), (45, 631584), (48, 592110), (51, 557280), (54, 526320), (60, 473688), (68, 417960), (72, 394740), (80, 355266), (81, 350880), (85, 334368), (86, 330480), (90, 315792), (96, 296055), (102, 278640), (108, 263160), (120, 236844), (129, 220320), (135, 210528), (136, 208980), (144, 197370), (153, 185760), (160, 177633), (162, 175440), (170, 167184), (172, 165240), (180, 157896), (204, 139320), (215, 132192), (216, 131580), (240, 118422), (243, 116960), (255, 111456), (258, 110160), (270, 105264), (272, 104490), (288, 98685), (306, 92880), (324, 87720), (340, 83592), (344, 82620), (360, 78948), (387, 73440), (405, 70176), (408, 69660), (430, 66096), (432, 65790), (459, 61920), (480, 59211), (486, 58480), (510, 55728), (516, 55080), (540, 52632), (544, 52245), (612, 46440), (645, 44064), (648, 43860), (680, 41796), (688, 41310), (720, 39474), (731, 38880), (765, 37152), (774, 36720), (810, 35088), (816, 34830), (860, 33048), (864, 32895), (918, 30960), (972, 29240), (1020, 27864), (1032, 27540), (1080, 26316), (1161, 24480), (1215, 23392), (1224, 23220), (1290, 22032), (1296, 21930), (1360, 20898), (1376, 20655), (1377, 20640), (1440, 19737), (1462, 19440), (1530, 18576), (1548, 18360), (1620, 17544), (1632, 17415), (1720, 16524), (1836, 15480), (1935, 14688), (1944, 14620), (2040, 13932), (2064, 13770), (2160, 13158), (2193, 12960), (2295, 12384), (2322, 12240), (2430, 11696), (2448, 11610), (2580, 11016), (2592, 10965), (2720, 10449), (2754, 10320), (2924, 9720), (3060, 9288), (3096, 9180), (3240, 8772), (3440, 8262), (3483, 8160), (3655, 7776), (3672, 7740), (3870, 7344), (3888, 7310), (4080, 6966), (4128, 6885), (4131, 6880), (4320, 6579), (4386, 6480), (4590, 6192), (4644, 6120), (4860, 5848), (4896, 5805), (5160, 5508)]