15338420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 34428240

約数和(自身を除く): 19089820

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 197, 229, 340, 394, 458, 788, 916, 985, 1145, 1970, 2290, 3349, 3893, 3940, 4580, 6698, 7786, 13396, 15572, 16745, 19465, 33490, 38930, 45113, 66980, 77860, 90226, 180452, 225565, 451130, 766921, 902260, 1533842, 3067684, 3834605, 7669210, 15338420]

約数ペア:

[(1, 15338420), (2, 7669210), (4, 3834605), (5, 3067684), (10, 1533842), (17, 902260), (20, 766921), (34, 451130), (68, 225565), (85, 180452), (170, 90226), (197, 77860), (229, 66980), (340, 45113), (394, 38930), (458, 33490), (788, 19465), (916, 16745), (985, 15572), (1145, 13396), (1970, 7786), (2290, 6698), (3349, 4580), (3893, 3940)]