19867288

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{509}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 46267200

約数和(自身を除く): 26399912

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 41, 56, 68, 82, 119, 136, 164, 238, 287, 328, 476, 509, 574, 697, 952, 1018, 1148, 1394, 2036, 2296, 2788, 3563, 4072, 4879, 5576, 7126, 8653, 9758, 14252, 17306, 19516, 20869, 28504, 34612, 39032, 41738, 60571, 69224, 83476, 121142, 146083, 166952, 242284, 292166, 354773, 484568, 584332, 709546, 1168664, 1419092, 2483411, 2838184, 4966822, 9933644, 19867288]

約数ペア:

[(1, 19867288), (2, 9933644), (4, 4966822), (7, 2838184), (8, 2483411), (14, 1419092), (17, 1168664), (28, 709546), (34, 584332), (41, 484568), (56, 354773), (68, 292166), (82, 242284), (119, 166952), (136, 146083), (164, 121142), (238, 83476), (287, 69224), (328, 60571), (476, 41738), (509, 39032), (574, 34612), (697, 28504), (952, 20869), (1018, 19516), (1148, 17306), (1394, 14252), (2036, 9758), (2296, 8653), (2788, 7126), (3563, 5576), (4072, 4879)]