28256176

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:230

約数の個数: 80

約数和(自身を含む): 63933408

約数和(自身を除く): 35677232

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 61, 68, 104, 122, 131, 136, 208, 221, 244, 262, 272, 442, 488, 524, 793, 884, 976, 1037, 1048, 1586, 1703, 1768, 2074, 2096, 2227, 3172, 3406, 3536, 4148, 4454, 6344, 6812, 7991, 8296, 8908, 12688, 13481, 13624, 15982, 16592, 17816, 26962, 27248, 28951, 31964, 35632, 53924, 57902, 63928, 103883, 107848, 115804, 127856, 135847, 207766, 215696, 231608, 271694, 415532, 463216, 543388, 831064, 1086776, 1662128, 1766011, 2173552, 3532022, 7064044, 14128088, 28256176]

約数ペア:

[(1, 28256176), (2, 14128088), (4, 7064044), (8, 3532022), (13, 2173552), (16, 1766011), (17, 1662128), (26, 1086776), (34, 831064), (52, 543388), (61, 463216), (68, 415532), (104, 271694), (122, 231608), (131, 215696), (136, 207766), (208, 135847), (221, 127856), (244, 115804), (262, 107848), (272, 103883), (442, 63928), (488, 57902), (524, 53924), (793, 35632), (884, 31964), (976, 28951), (1037, 27248), (1048, 26962), (1586, 17816), (1703, 16592), (1768, 15982), (2074, 13624), (2096, 13481), (2227, 12688), (3172, 8908), (3406, 8296), (3536, 7991), (4148, 6812), (4454, 6344)]