20502272

素因数分解:

$2^8\times 7^1\times {\mathrm{17}}^1\times {\mathrm{673}}^1$

素因数の和:713

約数の個数: 72

約数和(自身を含む): 49595616

約数和(自身を除く): 29093344

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 128, 136, 224, 238, 256, 272, 448, 476, 544, 673, 896, 952, 1088, 1346, 1792, 1904, 2176, 2692, 3808, 4352, 4711, 5384, 7616, 9422, 10768, 11441, 15232, 18844, 21536, 22882, 30464, 37688, 43072, 45764, 75376, 80087, 86144, 91528, 150752, 160174, 172288, 183056, 301504, 320348, 366112, 603008, 640696, 732224, 1206016, 1281392, 1464448, 2562784, 2928896, 5125568, 10251136, 20502272]

約数ペア:

[(1, 20502272), (2, 10251136), (4, 5125568), (7, 2928896), (8, 2562784), (14, 1464448), (16, 1281392), (17, 1206016), (28, 732224), (32, 640696), (34, 603008), (56, 366112), (64, 320348), (68, 301504), (112, 183056), (119, 172288), (128, 160174), (136, 150752), (224, 91528), (238, 86144), (256, 80087), (272, 75376), (448, 45764), (476, 43072), (544, 37688), (673, 30464), (896, 22882), (952, 21536), (1088, 18844), (1346, 15232), (1792, 11441), (1904, 10768), (2176, 9422), (2692, 7616), (3808, 5384), (4352, 4711)]