20528768

素因数分解:

$2^7\times {\mathrm{13}}^3\times {\mathrm{73}}^1$

素因数の和:126

約数の個数: 64

約数和(自身を含む): 44910600

約数和(自身を除く): 24381832

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 73, 104, 128, 146, 169, 208, 292, 338, 416, 584, 676, 832, 949, 1168, 1352, 1664, 1898, 2197, 2336, 2704, 3796, 4394, 4672, 5408, 7592, 8788, 9344, 10816, 12337, 15184, 17576, 21632, 24674, 30368, 35152, 49348, 60736, 70304, 98696, 121472, 140608, 160381, 197392, 281216, 320762, 394784, 641524, 789568, 1283048, 1579136, 2566096, 5132192, 10264384, 20528768]

約数ペア:

[(1, 20528768), (2, 10264384), (4, 5132192), (8, 2566096), (13, 1579136), (16, 1283048), (26, 789568), (32, 641524), (52, 394784), (64, 320762), (73, 281216), (104, 197392), (128, 160381), (146, 140608), (169, 121472), (208, 98696), (292, 70304), (338, 60736), (416, 49348), (584, 35152), (676, 30368), (832, 24674), (949, 21632), (1168, 17576), (1352, 15184), (1664, 12337), (1898, 10816), (2197, 9344), (2336, 8788), (2704, 7592), (3796, 5408), (4394, 4672)]