256219710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{283}}^1\times {\mathrm{293}}^1$

素因数の和:689

約数の個数: 64

約数和(自身を含む): 625218048

約数和(自身を除く): 368998338

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 103, 206, 283, 293, 309, 515, 566, 586, 618, 849, 879, 1030, 1415, 1465, 1545, 1698, 1758, 2830, 2930, 3090, 4245, 4395, 8490, 8790, 29149, 30179, 58298, 60358, 82919, 87447, 90537, 145745, 150895, 165838, 174894, 181074, 248757, 291490, 301790, 414595, 437235, 452685, 497514, 829190, 874470, 905370, 1243785, 2487570, 8540657, 17081314, 25621971, 42703285, 51243942, 85406570, 128109855, 256219710]

約数ペア:

[(1, 256219710), (2, 128109855), (3, 85406570), (5, 51243942), (6, 42703285), (10, 25621971), (15, 17081314), (30, 8540657), (103, 2487570), (206, 1243785), (283, 905370), (293, 874470), (309, 829190), (515, 497514), (566, 452685), (586, 437235), (618, 414595), (849, 301790), (879, 291490), (1030, 248757), (1415, 181074), (1465, 174894), (1545, 165838), (1698, 150895), (1758, 145745), (2830, 90537), (2930, 87447), (3090, 82919), (4245, 60358), (4395, 58298), (8490, 30179), (8790, 29149)]