20125728

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:239

約数の個数: 144

約数和(自身を含む): 66830400

約数和(自身を除く): 46704672

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 67, 72, 84, 96, 112, 126, 134, 144, 149, 168, 201, 224, 252, 268, 288, 298, 336, 402, 447, 469, 504, 536, 596, 603, 672, 804, 894, 938, 1008, 1043, 1072, 1192, 1206, 1341, 1407, 1608, 1788, 1876, 2016, 2086, 2144, 2384, 2412, 2682, 2814, 3129, 3216, 3576, 3752, 4172, 4221, 4768, 4824, 5364, 5628, 6258, 6432, 7152, 7504, 8344, 8442, 9387, 9648, 9983, 10728, 11256, 12516, 14304, 15008, 16688, 16884, 18774, 19296, 19966, 21456, 22512, 25032, 29949, 33376, 33768, 37548, 39932, 42912, 45024, 50064, 59898, 67536, 69881, 75096, 79864, 89847, 100128, 119796, 135072, 139762, 150192, 159728, 179694, 209643, 239592, 279524, 300384, 319456, 359388, 419286, 479184, 559048, 628929, 718776, 838572, 958368, 1118096, 1257858, 1437552, 1677144, 2236192, 2515716, 2875104, 3354288, 5031432, 6708576, 10062864, 20125728]

約数ペア:

[(1, 20125728), (2, 10062864), (3, 6708576), (4, 5031432), (6, 3354288), (7, 2875104), (8, 2515716), (9, 2236192), (12, 1677144), (14, 1437552), (16, 1257858), (18, 1118096), (21, 958368), (24, 838572), (28, 718776), (32, 628929), (36, 559048), (42, 479184), (48, 419286), (56, 359388), (63, 319456), (67, 300384), (72, 279524), (84, 239592), (96, 209643), (112, 179694), (126, 159728), (134, 150192), (144, 139762), (149, 135072), (168, 119796), (201, 100128), (224, 89847), (252, 79864), (268, 75096), (288, 69881), (298, 67536), (336, 59898), (402, 50064), (447, 45024), (469, 42912), (504, 39932), (536, 37548), (596, 33768), (603, 33376), (672, 29949), (804, 25032), (894, 22512), (938, 21456), (1008, 19966), (1043, 19296), (1072, 18774), (1192, 16884), (1206, 16688), (1341, 15008), (1407, 14304), (1608, 12516), (1788, 11256), (1876, 10728), (2016, 9983), (2086, 9648), (2144, 9387), (2384, 8442), (2412, 8344), (2682, 7504), (2814, 7152), (3129, 6432), (3216, 6258), (3576, 5628), (3752, 5364), (4172, 4824), (4221, 4768)]