781561088

素因数分解:

$2^8\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1279}}^1$

素因数の和:1344

約数の個数: 144

約数和(自身を含む): 2009333760

約数和(自身を除く): 1227772672

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 31, 32, 44, 56, 62, 64, 77, 88, 112, 124, 128, 154, 176, 217, 224, 248, 256, 308, 341, 352, 434, 448, 496, 616, 682, 704, 868, 896, 992, 1232, 1279, 1364, 1408, 1736, 1792, 1984, 2387, 2464, 2558, 2728, 2816, 3472, 3968, 4774, 4928, 5116, 5456, 6944, 7936, 8953, 9548, 9856, 10232, 10912, 13888, 14069, 17906, 19096, 19712, 20464, 21824, 27776, 28138, 35812, 38192, 39649, 40928, 43648, 55552, 56276, 71624, 76384, 79298, 81856, 87296, 98483, 112552, 143248, 152768, 158596, 163712, 196966, 225104, 277543, 286496, 305536, 317192, 327424, 393932, 436139, 450208, 555086, 572992, 611072, 634384, 787864, 872278, 900416, 1110172, 1145984, 1268768, 1575728, 1744556, 1800832, 2220344, 2291968, 2537536, 3052973, 3151456, 3489112, 3601664, 4440688, 5075072, 6105946, 6302912, 6978224, 8881376, 10150144, 12211892, 12605824, 13956448, 17762752, 24423784, 25211648, 27912896, 35525504, 48847568, 55825792, 71051008, 97695136, 111651584, 195390272, 390780544, 781561088]

約数ペア:

[(1, 781561088), (2, 390780544), (4, 195390272), (7, 111651584), (8, 97695136), (11, 71051008), (14, 55825792), (16, 48847568), (22, 35525504), (28, 27912896), (31, 25211648), (32, 24423784), (44, 17762752), (56, 13956448), (62, 12605824), (64, 12211892), (77, 10150144), (88, 8881376), (112, 6978224), (124, 6302912), (128, 6105946), (154, 5075072), (176, 4440688), (217, 3601664), (224, 3489112), (248, 3151456), (256, 3052973), (308, 2537536), (341, 2291968), (352, 2220344), (434, 1800832), (448, 1744556), (496, 1575728), (616, 1268768), (682, 1145984), (704, 1110172), (868, 900416), (896, 872278), (992, 787864), (1232, 634384), (1279, 611072), (1364, 572992), (1408, 555086), (1736, 450208), (1792, 436139), (1984, 393932), (2387, 327424), (2464, 317192), (2558, 305536), (2728, 286496), (2816, 277543), (3472, 225104), (3968, 196966), (4774, 163712), (4928, 158596), (5116, 152768), (5456, 143248), (6944, 112552), (7936, 98483), (8953, 87296), (9548, 81856), (9856, 79298), (10232, 76384), (10912, 71624), (13888, 56276), (14069, 55552), (17906, 43648), (19096, 40928), (19712, 39649), (20464, 38192), (21824, 35812), (27776, 28138)]