20637792

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{353}}^1$

素因数の和:405

約数の個数: 144

約数和(自身を含む): 69582240

約数和(自身を除く): 48944448

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 29, 32, 36, 42, 48, 56, 58, 63, 72, 84, 87, 96, 112, 116, 126, 144, 168, 174, 203, 224, 232, 252, 261, 288, 336, 348, 353, 406, 464, 504, 522, 609, 672, 696, 706, 812, 928, 1008, 1044, 1059, 1218, 1392, 1412, 1624, 1827, 2016, 2088, 2118, 2436, 2471, 2784, 2824, 3177, 3248, 3654, 4176, 4236, 4872, 4942, 5648, 6354, 6496, 7308, 7413, 8352, 8472, 9744, 9884, 10237, 11296, 12708, 14616, 14826, 16944, 19488, 19768, 20474, 22239, 25416, 29232, 29652, 30711, 33888, 39536, 40948, 44478, 50832, 58464, 59304, 61422, 71659, 79072, 81896, 88956, 92133, 101664, 118608, 122844, 143318, 163792, 177912, 184266, 214977, 237216, 245688, 286636, 327584, 355824, 368532, 429954, 491376, 573272, 644931, 711648, 737064, 859908, 982752, 1146544, 1289862, 1474128, 1719816, 2293088, 2579724, 2948256, 3439632, 5159448, 6879264, 10318896, 20637792]

約数ペア:

[(1, 20637792), (2, 10318896), (3, 6879264), (4, 5159448), (6, 3439632), (7, 2948256), (8, 2579724), (9, 2293088), (12, 1719816), (14, 1474128), (16, 1289862), (18, 1146544), (21, 982752), (24, 859908), (28, 737064), (29, 711648), (32, 644931), (36, 573272), (42, 491376), (48, 429954), (56, 368532), (58, 355824), (63, 327584), (72, 286636), (84, 245688), (87, 237216), (96, 214977), (112, 184266), (116, 177912), (126, 163792), (144, 143318), (168, 122844), (174, 118608), (203, 101664), (224, 92133), (232, 88956), (252, 81896), (261, 79072), (288, 71659), (336, 61422), (348, 59304), (353, 58464), (406, 50832), (464, 44478), (504, 40948), (522, 39536), (609, 33888), (672, 30711), (696, 29652), (706, 29232), (812, 25416), (928, 22239), (1008, 20474), (1044, 19768), (1059, 19488), (1218, 16944), (1392, 14826), (1412, 14616), (1624, 12708), (1827, 11296), (2016, 10237), (2088, 9884), (2118, 9744), (2436, 8472), (2471, 8352), (2784, 7413), (2824, 7308), (3177, 6496), (3248, 6354), (3654, 5648), (4176, 4942), (4236, 4872)]