266254660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{1979}}^1$

素因数の和:2057

約数の個数: 72

約数和(自身を含む): 660623040

約数和(自身を除く): 394368380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 961, 1085, 1922, 1979, 2170, 3844, 3958, 4340, 4805, 6727, 7916, 9610, 9895, 13454, 13853, 19220, 19790, 26908, 27706, 33635, 39580, 55412, 61349, 67270, 69265, 122698, 134540, 138530, 245396, 277060, 306745, 429443, 613490, 858886, 1226980, 1717772, 1901819, 2147215, 3803638, 4294430, 7607276, 8588860, 9509095, 13312733, 19018190, 26625466, 38036380, 53250932, 66563665, 133127330, 266254660]

約数ペア:

[(1, 266254660), (2, 133127330), (4, 66563665), (5, 53250932), (7, 38036380), (10, 26625466), (14, 19018190), (20, 13312733), (28, 9509095), (31, 8588860), (35, 7607276), (62, 4294430), (70, 3803638), (124, 2147215), (140, 1901819), (155, 1717772), (217, 1226980), (310, 858886), (434, 613490), (620, 429443), (868, 306745), (961, 277060), (1085, 245396), (1922, 138530), (1979, 134540), (2170, 122698), (3844, 69265), (3958, 67270), (4340, 61349), (4805, 55412), (6727, 39580), (7916, 33635), (9610, 27706), (9895, 26908), (13454, 19790), (13853, 19220)]