28570828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 59270400

約数和(自身を除く): 30699572

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 199, 251, 286, 398, 502, 572, 796, 1004, 2189, 2587, 2761, 3263, 4378, 5174, 5522, 6526, 8756, 10348, 11044, 13052, 28457, 35893, 49949, 56914, 71786, 99898, 113828, 143572, 199796, 549439, 649337, 1098878, 1298674, 2197756, 2597348, 7142707, 14285414, 28570828]

約数ペア:

[(1, 28570828), (2, 14285414), (4, 7142707), (11, 2597348), (13, 2197756), (22, 1298674), (26, 1098878), (44, 649337), (52, 549439), (143, 199796), (199, 143572), (251, 113828), (286, 99898), (398, 71786), (502, 56914), (572, 49949), (796, 35893), (1004, 28457), (2189, 13052), (2587, 11044), (2761, 10348), (3263, 8756), (4378, 6526), (5174, 5522)]