256408076

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{457}}^1$

素因数の和:738

約数の個数: 48

約数和(自身を含む): 491210496

約数和(自身を除く): 234802420

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 148, 223, 446, 457, 629, 892, 914, 1258, 1828, 2516, 3791, 7582, 7769, 8251, 15164, 15538, 16502, 16909, 31076, 33004, 33818, 67636, 101911, 140267, 203822, 280534, 287453, 407644, 561068, 574906, 1149812, 1732487, 3464974, 3770707, 6929948, 7541414, 15082828, 64102019, 128204038, 256408076]

約数ペア:

[(1, 256408076), (2, 128204038), (4, 64102019), (17, 15082828), (34, 7541414), (37, 6929948), (68, 3770707), (74, 3464974), (148, 1732487), (223, 1149812), (446, 574906), (457, 561068), (629, 407644), (892, 287453), (914, 280534), (1258, 203822), (1828, 140267), (2516, 101911), (3791, 67636), (7582, 33818), (7769, 33004), (8251, 31076), (15164, 16909), (15538, 16502)]