256831504

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{353}}^1\times {\mathrm{1229}}^1$

素因数の和:1627

約数の個数: 40

約数和(自身を含む): 512924760

約数和(自身を除く): 256093256

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 353, 592, 706, 1229, 1412, 2458, 2824, 4916, 5648, 9832, 13061, 19664, 26122, 45473, 52244, 90946, 104488, 181892, 208976, 363784, 433837, 727568, 867674, 1735348, 3470696, 6941392, 16051969, 32103938, 64207876, 128415752, 256831504]

約数ペア:

[(1, 256831504), (2, 128415752), (4, 64207876), (8, 32103938), (16, 16051969), (37, 6941392), (74, 3470696), (148, 1735348), (296, 867674), (353, 727568), (592, 433837), (706, 363784), (1229, 208976), (1412, 181892), (2458, 104488), (2824, 90946), (4916, 52244), (5648, 45473), (9832, 26122), (13061, 19664)]