256171552

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{101}}^1$

素因数の和:211

約数の個数: 144

約数和(自身を含む): 639721152

約数和(自身を除く): 383549600

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 67, 91, 101, 104, 112, 134, 169, 182, 202, 208, 224, 268, 338, 364, 404, 416, 469, 536, 676, 707, 728, 808, 871, 938, 1072, 1183, 1313, 1352, 1414, 1456, 1616, 1742, 1876, 2144, 2366, 2626, 2704, 2828, 2912, 3232, 3484, 3752, 4732, 5252, 5408, 5656, 6097, 6767, 6968, 7504, 9191, 9464, 10504, 11312, 11323, 12194, 13534, 13936, 15008, 17069, 18382, 18928, 21008, 22624, 22646, 24388, 27068, 27872, 34138, 36764, 37856, 42016, 45292, 47369, 48776, 54136, 68276, 73528, 79261, 87971, 90584, 94738, 97552, 108272, 119483, 136552, 147056, 158522, 175942, 181168, 189476, 195104, 216544, 238966, 273104, 294112, 317044, 351884, 362336, 378952, 477932, 546208, 615797, 634088, 703768, 757904, 955864, 1143623, 1231594, 1268176, 1407536, 1515808, 1911728, 2287246, 2463188, 2536352, 2815072, 3823456, 4574492, 4926376, 8005361, 9148984, 9852752, 16010722, 18297968, 19705504, 32021444, 36595936, 64042888, 128085776, 256171552]

約数ペア:

[(1, 256171552), (2, 128085776), (4, 64042888), (7, 36595936), (8, 32021444), (13, 19705504), (14, 18297968), (16, 16010722), (26, 9852752), (28, 9148984), (32, 8005361), (52, 4926376), (56, 4574492), (67, 3823456), (91, 2815072), (101, 2536352), (104, 2463188), (112, 2287246), (134, 1911728), (169, 1515808), (182, 1407536), (202, 1268176), (208, 1231594), (224, 1143623), (268, 955864), (338, 757904), (364, 703768), (404, 634088), (416, 615797), (469, 546208), (536, 477932), (676, 378952), (707, 362336), (728, 351884), (808, 317044), (871, 294112), (938, 273104), (1072, 238966), (1183, 216544), (1313, 195104), (1352, 189476), (1414, 181168), (1456, 175942), (1616, 158522), (1742, 147056), (1876, 136552), (2144, 119483), (2366, 108272), (2626, 97552), (2704, 94738), (2828, 90584), (2912, 87971), (3232, 79261), (3484, 73528), (3752, 68276), (4732, 54136), (5252, 48776), (5408, 47369), (5656, 45292), (6097, 42016), (6767, 37856), (6968, 36764), (7504, 34138), (9191, 27872), (9464, 27068), (10504, 24388), (11312, 22646), (11323, 22624), (12194, 21008), (13534, 18928), (13936, 18382), (15008, 17069)]