20620544

素因数分解:

$2^8\times 7^1\times {\mathrm{37}}^1\times {\mathrm{311}}^1$

素因数の和:371

約数の個数: 72

約数和(自身を含む): 48467328

約数和(自身を除く): 27846784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 64, 74, 112, 128, 148, 224, 256, 259, 296, 311, 448, 518, 592, 622, 896, 1036, 1184, 1244, 1792, 2072, 2177, 2368, 2488, 4144, 4354, 4736, 4976, 8288, 8708, 9472, 9952, 11507, 16576, 17416, 19904, 23014, 33152, 34832, 39808, 46028, 66304, 69664, 79616, 80549, 92056, 139328, 161098, 184112, 278656, 322196, 368224, 557312, 644392, 736448, 1288784, 1472896, 2577568, 2945792, 5155136, 10310272, 20620544]

約数ペア:

[(1, 20620544), (2, 10310272), (4, 5155136), (7, 2945792), (8, 2577568), (14, 1472896), (16, 1288784), (28, 736448), (32, 644392), (37, 557312), (56, 368224), (64, 322196), (74, 278656), (112, 184112), (128, 161098), (148, 139328), (224, 92056), (256, 80549), (259, 79616), (296, 69664), (311, 66304), (448, 46028), (518, 39808), (592, 34832), (622, 33152), (896, 23014), (1036, 19904), (1184, 17416), (1244, 16576), (1792, 11507), (2072, 9952), (2177, 9472), (2368, 8708), (2488, 8288), (4144, 4976), (4354, 4736)]