20852272

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:314

約数の個数: 80

約数和(自身を含む): 49996800

約数和(自身を除く): 29144528

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 41, 56, 76, 82, 112, 133, 152, 164, 239, 266, 287, 304, 328, 478, 532, 574, 656, 779, 956, 1064, 1148, 1558, 1673, 1912, 2128, 2296, 3116, 3346, 3824, 4541, 4592, 5453, 6232, 6692, 9082, 9799, 10906, 12464, 13384, 18164, 19598, 21812, 26768, 31787, 36328, 39196, 43624, 63574, 68593, 72656, 78392, 87248, 127148, 137186, 156784, 186181, 254296, 274372, 372362, 508592, 548744, 744724, 1097488, 1303267, 1489448, 2606534, 2978896, 5213068, 10426136, 20852272]

約数ペア:

[(1, 20852272), (2, 10426136), (4, 5213068), (7, 2978896), (8, 2606534), (14, 1489448), (16, 1303267), (19, 1097488), (28, 744724), (38, 548744), (41, 508592), (56, 372362), (76, 274372), (82, 254296), (112, 186181), (133, 156784), (152, 137186), (164, 127148), (239, 87248), (266, 78392), (287, 72656), (304, 68593), (328, 63574), (478, 43624), (532, 39196), (574, 36328), (656, 31787), (779, 26768), (956, 21812), (1064, 19598), (1148, 18164), (1558, 13384), (1673, 12464), (1912, 10906), (2128, 9799), (2296, 9082), (3116, 6692), (3346, 6232), (3824, 5453), (4541, 4592)]