257770292

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{281}}^1$

素因数の和:393

約数の個数: 72

約数和(自身を含む): 520188480

約数和(自身を除く): 262418188

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 59, 92, 118, 169, 236, 281, 299, 338, 562, 598, 676, 767, 1124, 1196, 1357, 1534, 2714, 3068, 3653, 3887, 5428, 6463, 7306, 7774, 9971, 12926, 14612, 15548, 16579, 17641, 19942, 25852, 33158, 35282, 39884, 47489, 66316, 70564, 84019, 94978, 168038, 189956, 215527, 229333, 336076, 381317, 431054, 458666, 762634, 862108, 917332, 1092247, 1525268, 2184494, 2801851, 4368988, 4957121, 5603702, 9914242, 11207404, 19828484, 64442573, 128885146, 257770292]

約数ペア:

[(1, 257770292), (2, 128885146), (4, 64442573), (13, 19828484), (23, 11207404), (26, 9914242), (46, 5603702), (52, 4957121), (59, 4368988), (92, 2801851), (118, 2184494), (169, 1525268), (236, 1092247), (281, 917332), (299, 862108), (338, 762634), (562, 458666), (598, 431054), (676, 381317), (767, 336076), (1124, 229333), (1196, 215527), (1357, 189956), (1534, 168038), (2714, 94978), (3068, 84019), (3653, 70564), (3887, 66316), (5428, 47489), (6463, 39884), (7306, 35282), (7774, 33158), (9971, 25852), (12926, 19942), (14612, 17641), (15548, 16579)]