257405008

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1657}}^1$

素因数の和:1764

約数の個数: 80

約数和(自身を含む): 608552320

約数和(自身を除く): 351147312

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 73, 76, 112, 133, 146, 152, 266, 292, 304, 511, 532, 584, 1022, 1064, 1168, 1387, 1657, 2044, 2128, 2774, 3314, 4088, 5548, 6628, 8176, 9709, 11096, 11599, 13256, 19418, 22192, 23198, 26512, 31483, 38836, 46396, 62966, 77672, 92792, 120961, 125932, 155344, 185584, 220381, 241922, 251864, 440762, 483844, 503728, 846727, 881524, 967688, 1693454, 1763048, 1935376, 2298259, 3386908, 3526096, 4596518, 6773816, 9193036, 13547632, 16087813, 18386072, 32175626, 36772144, 64351252, 128702504, 257405008]

約数ペア:

[(1, 257405008), (2, 128702504), (4, 64351252), (7, 36772144), (8, 32175626), (14, 18386072), (16, 16087813), (19, 13547632), (28, 9193036), (38, 6773816), (56, 4596518), (73, 3526096), (76, 3386908), (112, 2298259), (133, 1935376), (146, 1763048), (152, 1693454), (266, 967688), (292, 881524), (304, 846727), (511, 503728), (532, 483844), (584, 440762), (1022, 251864), (1064, 241922), (1168, 220381), (1387, 185584), (1657, 155344), (2044, 125932), (2128, 120961), (2774, 92792), (3314, 77672), (4088, 62966), (5548, 46396), (6628, 38836), (8176, 31483), (9709, 26512), (11096, 23198), (11599, 22192), (13256, 19418)]