51982140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17681}}^1$

素因数の和:17707

約数の個数: 72

約数和(自身を含む): 169322832

約数和(自身を除く): 117340692

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 17681, 35362, 53043, 70724, 88405, 106086, 123767, 176810, 212172, 247534, 265215, 353620, 371301, 495068, 530430, 618835, 742602, 866369, 1060860, 1237670, 1485204, 1732738, 1856505, 2475340, 2599107, 3465476, 3713010, 4331845, 5198214, 7426020, 8663690, 10396428, 12995535, 17327380, 25991070, 51982140]

約数ペア:

[(1, 51982140), (2, 25991070), (3, 17327380), (4, 12995535), (5, 10396428), (6, 8663690), (7, 7426020), (10, 5198214), (12, 4331845), (14, 3713010), (15, 3465476), (20, 2599107), (21, 2475340), (28, 1856505), (30, 1732738), (35, 1485204), (42, 1237670), (49, 1060860), (60, 866369), (70, 742602), (84, 618835), (98, 530430), (105, 495068), (140, 371301), (147, 353620), (196, 265215), (210, 247534), (245, 212172), (294, 176810), (420, 123767), (490, 106086), (588, 88405), (735, 70724), (980, 53043), (1470, 35362), (2940, 17681)]