19628504

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 44029440

約数和(自身を除く): 24400936

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 83, 103, 164, 166, 206, 287, 328, 332, 412, 574, 581, 664, 721, 824, 1148, 1162, 1442, 2296, 2324, 2884, 3403, 4223, 4648, 5768, 6806, 8446, 8549, 13612, 16892, 17098, 23821, 27224, 29561, 33784, 34196, 47642, 59122, 59843, 68392, 95284, 118244, 119686, 190568, 236488, 239372, 350509, 478744, 701018, 1402036, 2453563, 2804072, 4907126, 9814252, 19628504]

約数ペア:

[(1, 19628504), (2, 9814252), (4, 4907126), (7, 2804072), (8, 2453563), (14, 1402036), (28, 701018), (41, 478744), (56, 350509), (82, 239372), (83, 236488), (103, 190568), (164, 119686), (166, 118244), (206, 95284), (287, 68392), (328, 59843), (332, 59122), (412, 47642), (574, 34196), (581, 33784), (664, 29561), (721, 27224), (824, 23821), (1148, 17098), (1162, 16892), (1442, 13612), (2296, 8549), (2324, 8446), (2884, 6806), (3403, 5768), (4223, 4648)]