31456256

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:189

約数の個数: 88

約数和(自身を含む): 72218160

約数和(自身を除く): 40761904

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 128, 136, 139, 208, 221, 256, 272, 278, 416, 442, 512, 544, 556, 832, 884, 1024, 1088, 1112, 1664, 1768, 1807, 2176, 2224, 2363, 3328, 3536, 3614, 4352, 4448, 4726, 6656, 7072, 7228, 8704, 8896, 9452, 13312, 14144, 14456, 17408, 17792, 18904, 28288, 28912, 30719, 35584, 37808, 56576, 57824, 61438, 71168, 75616, 113152, 115648, 122876, 142336, 151232, 226304, 231296, 245752, 302464, 462592, 491504, 604928, 925184, 983008, 1209856, 1850368, 1966016, 2419712, 3932032, 7864064, 15728128, 31456256]

約数ペア:

[(1, 31456256), (2, 15728128), (4, 7864064), (8, 3932032), (13, 2419712), (16, 1966016), (17, 1850368), (26, 1209856), (32, 983008), (34, 925184), (52, 604928), (64, 491504), (68, 462592), (104, 302464), (128, 245752), (136, 231296), (139, 226304), (208, 151232), (221, 142336), (256, 122876), (272, 115648), (278, 113152), (416, 75616), (442, 71168), (512, 61438), (544, 57824), (556, 56576), (832, 37808), (884, 35584), (1024, 30719), (1088, 28912), (1112, 28288), (1664, 18904), (1768, 17792), (1807, 17408), (2176, 14456), (2224, 14144), (2363, 13312), (3328, 9452), (3536, 8896), (3614, 8704), (4352, 7228), (4448, 7072), (4726, 6656)]