19938960

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:223

約数の個数: 200

約数和(自身を含む): 73729656

約数和(自身を除く): 53790696

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 48, 51, 54, 60, 68, 72, 80, 81, 85, 90, 102, 108, 120, 135, 136, 144, 153, 162, 170, 180, 181, 204, 216, 240, 255, 270, 272, 306, 324, 340, 360, 362, 405, 408, 432, 459, 510, 540, 543, 612, 648, 680, 720, 724, 765, 810, 816, 905, 918, 1020, 1080, 1086, 1224, 1296, 1360, 1377, 1448, 1530, 1620, 1629, 1810, 1836, 2040, 2160, 2172, 2295, 2448, 2715, 2754, 2896, 3060, 3077, 3240, 3258, 3620, 3672, 4080, 4344, 4590, 4887, 5430, 5508, 6120, 6154, 6480, 6516, 6885, 7240, 7344, 8145, 8688, 9180, 9231, 9774, 10860, 11016, 12240, 12308, 13032, 13770, 14480, 14661, 15385, 16290, 18360, 18462, 19548, 21720, 22032, 24435, 24616, 26064, 27540, 27693, 29322, 30770, 32580, 36720, 36924, 39096, 43440, 46155, 48870, 49232, 55080, 55386, 58644, 61540, 65160, 73305, 73848, 78192, 83079, 92310, 97740, 110160, 110772, 117288, 123080, 130320, 138465, 146610, 147696, 166158, 184620, 195480, 221544, 234576, 246160, 249237, 276930, 293220, 332316, 369240, 390960, 415395, 443088, 498474, 553860, 586440, 664632, 738480, 830790, 996948, 1107720, 1172880, 1246185, 1329264, 1661580, 1993896, 2215440, 2492370, 3323160, 3987792, 4984740, 6646320, 9969480, 19938960]

約数ペア:

[(1, 19938960), (2, 9969480), (3, 6646320), (4, 4984740), (5, 3987792), (6, 3323160), (8, 2492370), (9, 2215440), (10, 1993896), (12, 1661580), (15, 1329264), (16, 1246185), (17, 1172880), (18, 1107720), (20, 996948), (24, 830790), (27, 738480), (30, 664632), (34, 586440), (36, 553860), (40, 498474), (45, 443088), (48, 415395), (51, 390960), (54, 369240), (60, 332316), (68, 293220), (72, 276930), (80, 249237), (81, 246160), (85, 234576), (90, 221544), (102, 195480), (108, 184620), (120, 166158), (135, 147696), (136, 146610), (144, 138465), (153, 130320), (162, 123080), (170, 117288), (180, 110772), (181, 110160), (204, 97740), (216, 92310), (240, 83079), (255, 78192), (270, 73848), (272, 73305), (306, 65160), (324, 61540), (340, 58644), (360, 55386), (362, 55080), (405, 49232), (408, 48870), (432, 46155), (459, 43440), (510, 39096), (540, 36924), (543, 36720), (612, 32580), (648, 30770), (680, 29322), (720, 27693), (724, 27540), (765, 26064), (810, 24616), (816, 24435), (905, 22032), (918, 21720), (1020, 19548), (1080, 18462), (1086, 18360), (1224, 16290), (1296, 15385), (1360, 14661), (1377, 14480), (1448, 13770), (1530, 13032), (1620, 12308), (1629, 12240), (1810, 11016), (1836, 10860), (2040, 9774), (2160, 9231), (2172, 9180), (2295, 8688), (2448, 8145), (2715, 7344), (2754, 7240), (2896, 6885), (3060, 6516), (3077, 6480), (3240, 6154), (3258, 6120), (3620, 5508), (3672, 5430), (4080, 4887), (4344, 4590)]