81322605

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2837}}^1$

素因数の和:2875

約数の個数: 72

約数和(自身を含む): 176648472

約数和(自身を除く): 95325867

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 49, 63, 65, 91, 105, 117, 147, 195, 245, 273, 315, 441, 455, 585, 637, 735, 819, 1365, 1911, 2205, 2837, 3185, 4095, 5733, 8511, 9555, 14185, 19859, 25533, 28665, 36881, 42555, 59577, 99295, 110643, 127665, 139013, 178731, 184405, 258167, 297885, 331929, 417039, 553215, 695065, 774501, 893655, 1251117, 1290835, 1659645, 1807169, 2085195, 2323503, 3872505, 5421507, 6255585, 9035845, 11617515, 16264521, 27107535, 81322605]

約数ペア:

[(1, 81322605), (3, 27107535), (5, 16264521), (7, 11617515), (9, 9035845), (13, 6255585), (15, 5421507), (21, 3872505), (35, 2323503), (39, 2085195), (45, 1807169), (49, 1659645), (63, 1290835), (65, 1251117), (91, 893655), (105, 774501), (117, 695065), (147, 553215), (195, 417039), (245, 331929), (273, 297885), (315, 258167), (441, 184405), (455, 178731), (585, 139013), (637, 127665), (735, 110643), (819, 99295), (1365, 59577), (1911, 42555), (2205, 36881), (2837, 28665), (3185, 25533), (4095, 19859), (5733, 14185), (8511, 9555)]