19866400

素因数分解:

$2^5\times 5^2\times {\mathrm{19}}^1\times {\mathrm{1307}}^1$

素因数の和:1346

約数の個数: 72

約数和(自身を含む): 51090480

約数和(自身を除く): 31224080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 76, 80, 95, 100, 152, 160, 190, 200, 304, 380, 400, 475, 608, 760, 800, 950, 1307, 1520, 1900, 2614, 3040, 3800, 5228, 6535, 7600, 10456, 13070, 15200, 20912, 24833, 26140, 32675, 41824, 49666, 52280, 65350, 99332, 104560, 124165, 130700, 198664, 209120, 248330, 261400, 397328, 496660, 522800, 620825, 794656, 993320, 1045600, 1241650, 1986640, 2483300, 3973280, 4966600, 9933200, 19866400]

約数ペア:

[(1, 19866400), (2, 9933200), (4, 4966600), (5, 3973280), (8, 2483300), (10, 1986640), (16, 1241650), (19, 1045600), (20, 993320), (25, 794656), (32, 620825), (38, 522800), (40, 496660), (50, 397328), (76, 261400), (80, 248330), (95, 209120), (100, 198664), (152, 130700), (160, 124165), (190, 104560), (200, 99332), (304, 65350), (380, 52280), (400, 49666), (475, 41824), (608, 32675), (760, 26140), (800, 24833), (950, 20912), (1307, 15200), (1520, 13070), (1900, 10456), (2614, 7600), (3040, 6535), (3800, 5228)]