19878768

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:112

約数の個数: 240

約数和(自身を含む): 72037056

約数和(自身を除く): 52158288

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 36, 37, 39, 41, 42, 48, 52, 56, 63, 72, 74, 78, 82, 84, 91, 104, 111, 112, 117, 123, 126, 144, 148, 156, 164, 168, 182, 208, 222, 234, 246, 252, 259, 273, 287, 296, 312, 328, 333, 336, 364, 369, 444, 468, 481, 492, 504, 518, 533, 546, 574, 592, 624, 656, 666, 728, 738, 777, 819, 861, 888, 936, 962, 984, 1008, 1036, 1066, 1092, 1148, 1332, 1443, 1456, 1476, 1517, 1554, 1599, 1638, 1722, 1776, 1872, 1924, 1968, 2072, 2132, 2184, 2296, 2331, 2583, 2664, 2886, 2952, 3034, 3108, 3198, 3276, 3367, 3444, 3731, 3848, 4144, 4264, 4329, 4368, 4551, 4592, 4662, 4797, 5166, 5328, 5772, 5904, 6068, 6216, 6396, 6552, 6734, 6888, 7462, 7696, 8528, 8658, 9102, 9324, 9594, 10101, 10332, 10619, 11193, 11544, 12136, 12432, 12792, 13104, 13468, 13653, 13776, 14924, 17316, 18204, 18648, 19188, 19721, 20202, 20664, 21238, 22386, 23088, 24272, 25584, 26936, 27306, 29848, 30303, 31857, 33579, 34632, 36408, 37296, 38376, 39442, 40404, 41328, 42476, 44772, 53872, 54612, 59163, 59696, 60606, 63714, 67158, 69264, 72816, 76752, 78884, 80808, 84952, 89544, 95571, 109224, 118326, 121212, 127428, 134316, 138047, 157768, 161616, 169904, 177489, 179088, 191142, 218448, 236652, 242424, 254856, 268632, 276094, 315536, 354978, 382284, 414141, 473304, 484848, 509712, 537264, 552188, 709956, 764568, 828282, 946608, 1104376, 1242423, 1419912, 1529136, 1656564, 2208752, 2484846, 2839824, 3313128, 4969692, 6626256, 9939384, 19878768]

約数ペア:

[(1, 19878768), (2, 9939384), (3, 6626256), (4, 4969692), (6, 3313128), (7, 2839824), (8, 2484846), (9, 2208752), (12, 1656564), (13, 1529136), (14, 1419912), (16, 1242423), (18, 1104376), (21, 946608), (24, 828282), (26, 764568), (28, 709956), (36, 552188), (37, 537264), (39, 509712), (41, 484848), (42, 473304), (48, 414141), (52, 382284), (56, 354978), (63, 315536), (72, 276094), (74, 268632), (78, 254856), (82, 242424), (84, 236652), (91, 218448), (104, 191142), (111, 179088), (112, 177489), (117, 169904), (123, 161616), (126, 157768), (144, 138047), (148, 134316), (156, 127428), (164, 121212), (168, 118326), (182, 109224), (208, 95571), (222, 89544), (234, 84952), (246, 80808), (252, 78884), (259, 76752), (273, 72816), (287, 69264), (296, 67158), (312, 63714), (328, 60606), (333, 59696), (336, 59163), (364, 54612), (369, 53872), (444, 44772), (468, 42476), (481, 41328), (492, 40404), (504, 39442), (518, 38376), (533, 37296), (546, 36408), (574, 34632), (592, 33579), (624, 31857), (656, 30303), (666, 29848), (728, 27306), (738, 26936), (777, 25584), (819, 24272), (861, 23088), (888, 22386), (936, 21238), (962, 20664), (984, 20202), (1008, 19721), (1036, 19188), (1066, 18648), (1092, 18204), (1148, 17316), (1332, 14924), (1443, 13776), (1456, 13653), (1476, 13468), (1517, 13104), (1554, 12792), (1599, 12432), (1638, 12136), (1722, 11544), (1776, 11193), (1872, 10619), (1924, 10332), (1968, 10101), (2072, 9594), (2132, 9324), (2184, 9102), (2296, 8658), (2331, 8528), (2583, 7696), (2664, 7462), (2886, 6888), (2952, 6734), (3034, 6552), (3108, 6396), (3198, 6216), (3276, 6068), (3367, 5904), (3444, 5772), (3731, 5328), (3848, 5166), (4144, 4797), (4264, 4662), (4329, 4592), (4368, 4551)]