257029370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:180

約数の個数: 128

約数和(自身を含む): 557383680

約数和(自身を除く): 300354310

約数列:

[1, 2, 5, 10, 13, 23, 26, 31, 46, 47, 59, 62, 65, 94, 115, 118, 130, 155, 230, 235, 295, 299, 310, 403, 470, 590, 598, 611, 713, 767, 806, 1081, 1222, 1357, 1426, 1457, 1495, 1534, 1829, 2015, 2162, 2714, 2773, 2914, 2990, 3055, 3565, 3658, 3835, 4030, 5405, 5546, 6110, 6785, 7130, 7285, 7670, 9145, 9269, 10810, 13570, 13865, 14053, 14570, 17641, 18290, 18538, 18941, 23777, 27730, 28106, 33511, 35282, 36049, 37882, 42067, 46345, 47554, 63779, 67022, 70265, 72098, 84134, 85963, 88205, 92690, 94705, 118885, 127558, 140530, 167555, 171926, 176410, 180245, 189410, 210335, 237770, 318895, 335110, 360490, 420670, 429815, 435643, 546871, 637790, 829127, 859630, 871286, 1093742, 1117519, 1658254, 1977149, 2178215, 2235038, 2734355, 3954298, 4145635, 4356430, 5468710, 5587595, 8291270, 9885745, 11175190, 19771490, 25702937, 51405874, 128514685, 257029370]

約数ペア:

[(1, 257029370), (2, 128514685), (5, 51405874), (10, 25702937), (13, 19771490), (23, 11175190), (26, 9885745), (31, 8291270), (46, 5587595), (47, 5468710), (59, 4356430), (62, 4145635), (65, 3954298), (94, 2734355), (115, 2235038), (118, 2178215), (130, 1977149), (155, 1658254), (230, 1117519), (235, 1093742), (295, 871286), (299, 859630), (310, 829127), (403, 637790), (470, 546871), (590, 435643), (598, 429815), (611, 420670), (713, 360490), (767, 335110), (806, 318895), (1081, 237770), (1222, 210335), (1357, 189410), (1426, 180245), (1457, 176410), (1495, 171926), (1534, 167555), (1829, 140530), (2015, 127558), (2162, 118885), (2714, 94705), (2773, 92690), (2914, 88205), (2990, 85963), (3055, 84134), (3565, 72098), (3658, 70265), (3835, 67022), (4030, 63779), (5405, 47554), (5546, 46345), (6110, 42067), (6785, 37882), (7130, 36049), (7285, 35282), (7670, 33511), (9145, 28106), (9269, 27730), (10810, 23777), (13570, 18941), (13865, 18538), (14053, 18290), (14570, 17641)]