84542720

素因数分解:

$2^8\times 5^1\times {\mathrm{257}}^2$

素因数の和:535

約数の個数: 54

約数和(自身を含む): 203297262

約数和(自身を除く): 118754542

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 257, 320, 514, 640, 1028, 1280, 1285, 2056, 2570, 4112, 5140, 8224, 10280, 16448, 20560, 32896, 41120, 65792, 66049, 82240, 132098, 164480, 264196, 328960, 330245, 528392, 660490, 1056784, 1320980, 2113568, 2641960, 4227136, 5283920, 8454272, 10567840, 16908544, 21135680, 42271360, 84542720]

約数ペア:

[(1, 84542720), (2, 42271360), (4, 21135680), (5, 16908544), (8, 10567840), (10, 8454272), (16, 5283920), (20, 4227136), (32, 2641960), (40, 2113568), (64, 1320980), (80, 1056784), (128, 660490), (160, 528392), (256, 330245), (257, 328960), (320, 264196), (514, 164480), (640, 132098), (1028, 82240), (1280, 66049), (1285, 65792), (2056, 41120), (2570, 32896), (4112, 20560), (5140, 16448), (8224, 10280)]