20788128

素因数分解:

$2^5\times 3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:195

約数の個数: 144

約数和(自身を含む): 64864800

約数和(自身を除く): 44076672

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 29, 32, 36, 38, 48, 57, 58, 72, 76, 87, 96, 114, 116, 131, 144, 152, 171, 174, 228, 232, 261, 262, 288, 304, 342, 348, 393, 456, 464, 522, 524, 551, 608, 684, 696, 786, 912, 928, 1044, 1048, 1102, 1179, 1368, 1392, 1572, 1653, 1824, 2088, 2096, 2204, 2358, 2489, 2736, 2784, 3144, 3306, 3799, 4176, 4192, 4408, 4716, 4959, 4978, 5472, 6288, 6612, 7467, 7598, 8352, 8816, 9432, 9918, 9956, 11397, 12576, 13224, 14934, 15196, 17632, 18864, 19836, 19912, 22401, 22794, 26448, 29868, 30392, 34191, 37728, 39672, 39824, 44802, 45588, 52896, 59736, 60784, 68382, 72181, 79344, 79648, 89604, 91176, 119472, 121568, 136764, 144362, 158688, 179208, 182352, 216543, 238944, 273528, 288724, 358416, 364704, 433086, 547056, 577448, 649629, 716832, 866172, 1094112, 1154896, 1299258, 1732344, 2309792, 2598516, 3464688, 5197032, 6929376, 10394064, 20788128]

約数ペア:

[(1, 20788128), (2, 10394064), (3, 6929376), (4, 5197032), (6, 3464688), (8, 2598516), (9, 2309792), (12, 1732344), (16, 1299258), (18, 1154896), (19, 1094112), (24, 866172), (29, 716832), (32, 649629), (36, 577448), (38, 547056), (48, 433086), (57, 364704), (58, 358416), (72, 288724), (76, 273528), (87, 238944), (96, 216543), (114, 182352), (116, 179208), (131, 158688), (144, 144362), (152, 136764), (171, 121568), (174, 119472), (228, 91176), (232, 89604), (261, 79648), (262, 79344), (288, 72181), (304, 68382), (342, 60784), (348, 59736), (393, 52896), (456, 45588), (464, 44802), (522, 39824), (524, 39672), (551, 37728), (608, 34191), (684, 30392), (696, 29868), (786, 26448), (912, 22794), (928, 22401), (1044, 19912), (1048, 19836), (1102, 18864), (1179, 17632), (1368, 15196), (1392, 14934), (1572, 13224), (1653, 12576), (1824, 11397), (2088, 9956), (2096, 9918), (2204, 9432), (2358, 8816), (2489, 8352), (2736, 7598), (2784, 7467), (3144, 6612), (3306, 6288), (3799, 5472), (4176, 4978), (4192, 4959), (4408, 4716)]