81244384

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{181}}^1$

素因数の和:300

約数の個数: 72

約数和(自身を含む): 176255352

約数和(自身を除く): 95010968

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 83, 104, 166, 169, 181, 208, 332, 338, 362, 416, 664, 676, 724, 1079, 1328, 1352, 1448, 2158, 2353, 2656, 2704, 2896, 4316, 4706, 5408, 5792, 8632, 9412, 14027, 15023, 17264, 18824, 28054, 30046, 30589, 34528, 37648, 56108, 60092, 61178, 75296, 112216, 120184, 122356, 195299, 224432, 240368, 244712, 390598, 448864, 480736, 489424, 781196, 978848, 1562392, 2538887, 3124784, 5077774, 6249568, 10155548, 20311096, 40622192, 81244384]

約数ペア:

[(1, 81244384), (2, 40622192), (4, 20311096), (8, 10155548), (13, 6249568), (16, 5077774), (26, 3124784), (32, 2538887), (52, 1562392), (83, 978848), (104, 781196), (166, 489424), (169, 480736), (181, 448864), (208, 390598), (332, 244712), (338, 240368), (362, 224432), (416, 195299), (664, 122356), (676, 120184), (724, 112216), (1079, 75296), (1328, 61178), (1352, 60092), (1448, 56108), (2158, 37648), (2353, 34528), (2656, 30589), (2704, 30046), (2896, 28054), (4316, 18824), (4706, 17264), (5408, 15023), (5792, 14027), (8632, 9412)]