1257642728

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{293}}^1\times {\mathrm{853}}^1$

素因数の和:1206

約数の個数: 64

約数和(自身を含む): 2576039760

約数和(自身を除く): 1318397032

約数列:

[1, 2, 4, 8, 17, 34, 37, 68, 74, 136, 148, 293, 296, 586, 629, 853, 1172, 1258, 1706, 2344, 2516, 3412, 4981, 5032, 6824, 9962, 10841, 14501, 19924, 21682, 29002, 31561, 39848, 43364, 58004, 63122, 86728, 116008, 126244, 184297, 249929, 252488, 368594, 499858, 536537, 737188, 999716, 1073074, 1474376, 1999432, 2146148, 4248793, 4292296, 8497586, 9247373, 16995172, 18494746, 33990344, 36989492, 73978984, 157205341, 314410682, 628821364, 1257642728]

約数ペア:

[(1, 1257642728), (2, 628821364), (4, 314410682), (8, 157205341), (17, 73978984), (34, 36989492), (37, 33990344), (68, 18494746), (74, 16995172), (136, 9247373), (148, 8497586), (293, 4292296), (296, 4248793), (586, 2146148), (629, 1999432), (853, 1474376), (1172, 1073074), (1258, 999716), (1706, 737188), (2344, 536537), (2516, 499858), (3412, 368594), (4981, 252488), (5032, 249929), (6824, 184297), (9962, 126244), (10841, 116008), (14501, 86728), (19924, 63122), (21682, 58004), (29002, 43364), (31561, 39848)]