30721824

素因数分解:

$2^5\times 3^2\times 7^3\times {\mathrm{311}}^1$

素因数の和:348

約数の個数: 144

約数和(自身を含む): 102211200

約数和(自身を除く): 71489376

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 49, 56, 63, 72, 84, 96, 98, 112, 126, 144, 147, 168, 196, 224, 252, 288, 294, 311, 336, 343, 392, 441, 504, 588, 622, 672, 686, 784, 882, 933, 1008, 1029, 1176, 1244, 1372, 1568, 1764, 1866, 2016, 2058, 2177, 2352, 2488, 2744, 2799, 3087, 3528, 3732, 4116, 4354, 4704, 4976, 5488, 5598, 6174, 6531, 7056, 7464, 8232, 8708, 9952, 10976, 11196, 12348, 13062, 14112, 14928, 15239, 16464, 17416, 19593, 22392, 24696, 26124, 29856, 30478, 32928, 34832, 39186, 44784, 45717, 49392, 52248, 60956, 69664, 78372, 89568, 91434, 98784, 104496, 106673, 121912, 137151, 156744, 182868, 208992, 213346, 243824, 274302, 313488, 320019, 365736, 426692, 487648, 548604, 626976, 640038, 731472, 853384, 960057, 1097208, 1280076, 1462944, 1706768, 1920114, 2194416, 2560152, 3413536, 3840228, 4388832, 5120304, 7680456, 10240608, 15360912, 30721824]

約数ペア:

[(1, 30721824), (2, 15360912), (3, 10240608), (4, 7680456), (6, 5120304), (7, 4388832), (8, 3840228), (9, 3413536), (12, 2560152), (14, 2194416), (16, 1920114), (18, 1706768), (21, 1462944), (24, 1280076), (28, 1097208), (32, 960057), (36, 853384), (42, 731472), (48, 640038), (49, 626976), (56, 548604), (63, 487648), (72, 426692), (84, 365736), (96, 320019), (98, 313488), (112, 274302), (126, 243824), (144, 213346), (147, 208992), (168, 182868), (196, 156744), (224, 137151), (252, 121912), (288, 106673), (294, 104496), (311, 98784), (336, 91434), (343, 89568), (392, 78372), (441, 69664), (504, 60956), (588, 52248), (622, 49392), (672, 45717), (686, 44784), (784, 39186), (882, 34832), (933, 32928), (1008, 30478), (1029, 29856), (1176, 26124), (1244, 24696), (1372, 22392), (1568, 19593), (1764, 17416), (1866, 16464), (2016, 15239), (2058, 14928), (2177, 14112), (2352, 13062), (2488, 12348), (2744, 11196), (2799, 10976), (3087, 9952), (3528, 8708), (3732, 8232), (4116, 7464), (4354, 7056), (4704, 6531), (4976, 6174), (5488, 5598)]