220969216

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{991}}^1$

素因数の和:1087

約数の個数: 72

約数和(自身を含む): 482580224

約数和(自身を除く): 261611008

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 67, 104, 128, 134, 208, 256, 268, 416, 536, 832, 871, 991, 1072, 1664, 1742, 1982, 2144, 3328, 3484, 3964, 4288, 6968, 7928, 8576, 12883, 13936, 15856, 17152, 25766, 27872, 31712, 51532, 55744, 63424, 66397, 103064, 111488, 126848, 132794, 206128, 222976, 253696, 265588, 412256, 531176, 824512, 863161, 1062352, 1649024, 1726322, 2124704, 3298048, 3452644, 4249408, 6905288, 8498816, 13810576, 16997632, 27621152, 55242304, 110484608, 220969216]

約数ペア:

[(1, 220969216), (2, 110484608), (4, 55242304), (8, 27621152), (13, 16997632), (16, 13810576), (26, 8498816), (32, 6905288), (52, 4249408), (64, 3452644), (67, 3298048), (104, 2124704), (128, 1726322), (134, 1649024), (208, 1062352), (256, 863161), (268, 824512), (416, 531176), (536, 412256), (832, 265588), (871, 253696), (991, 222976), (1072, 206128), (1664, 132794), (1742, 126848), (1982, 111488), (2144, 103064), (3328, 66397), (3484, 63424), (3964, 55744), (4288, 51532), (6968, 31712), (7928, 27872), (8576, 25766), (12883, 17152), (13936, 15856)]