256255760

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1\times {\mathrm{227}}^1$

素因数の和:480

約数の個数: 80

約数和(自身を含む): 608639616

約数和(自身を除く): 352383856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 137, 206, 227, 274, 412, 454, 515, 548, 685, 824, 908, 1030, 1096, 1135, 1370, 1648, 1816, 2060, 2192, 2270, 2740, 3632, 4120, 4540, 5480, 8240, 9080, 10960, 14111, 18160, 23381, 28222, 31099, 46762, 56444, 62198, 70555, 93524, 112888, 116905, 124396, 141110, 155495, 187048, 225776, 233810, 248792, 282220, 310990, 374096, 467620, 497584, 564440, 621980, 935240, 1128880, 1243960, 1870480, 2487920, 3203197, 6406394, 12812788, 16015985, 25625576, 32031970, 51251152, 64063940, 128127880, 256255760]

約数ペア:

[(1, 256255760), (2, 128127880), (4, 64063940), (5, 51251152), (8, 32031970), (10, 25625576), (16, 16015985), (20, 12812788), (40, 6406394), (80, 3203197), (103, 2487920), (137, 1870480), (206, 1243960), (227, 1128880), (274, 935240), (412, 621980), (454, 564440), (515, 497584), (548, 467620), (685, 374096), (824, 310990), (908, 282220), (1030, 248792), (1096, 233810), (1135, 225776), (1370, 187048), (1648, 155495), (1816, 141110), (2060, 124396), (2192, 116905), (2270, 112888), (2740, 93524), (3632, 70555), (4120, 62198), (4540, 56444), (5480, 46762), (8240, 31099), (9080, 28222), (10960, 23381), (14111, 18160)]