161551172

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{421}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 305703552

約数和(自身を除く): 144152380

約数列:

[1, 2, 4, 23, 43, 46, 86, 92, 97, 172, 194, 388, 421, 842, 989, 1684, 1978, 2231, 3956, 4171, 4462, 8342, 8924, 9683, 16684, 18103, 19366, 36206, 38732, 40837, 72412, 81674, 95933, 163348, 191866, 383732, 416369, 832738, 939251, 1665476, 1755991, 1878502, 3511982, 3757004, 7023964, 40387793, 80775586, 161551172]

約数ペア:

[(1, 161551172), (2, 80775586), (4, 40387793), (23, 7023964), (43, 3757004), (46, 3511982), (86, 1878502), (92, 1755991), (97, 1665476), (172, 939251), (194, 832738), (388, 416369), (421, 383732), (842, 191866), (989, 163348), (1684, 95933), (1978, 81674), (2231, 72412), (3956, 40837), (4171, 38732), (4462, 36206), (8342, 19366), (8924, 18103), (9683, 16684)]