1489642690

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1\times {\mathrm{241}}^1$

素因数の和:563

約数の個数: 64

約数和(自身を含む): 2819063808

約数和(自身を除く): 1329421118

約数列:

[1, 2, 5, 10, 31, 62, 127, 155, 157, 241, 254, 310, 314, 482, 635, 785, 1205, 1270, 1570, 2410, 3937, 4867, 7471, 7874, 9734, 14942, 19685, 19939, 24335, 30607, 37355, 37837, 39370, 39878, 48670, 61214, 74710, 75674, 99695, 153035, 189185, 199390, 306070, 378370, 618109, 948817, 1172947, 1236218, 1897634, 2345894, 3090545, 4744085, 4805299, 5864735, 6181090, 9488170, 9610598, 11729470, 24026495, 48052990, 148964269, 297928538, 744821345, 1489642690]

約数ペア:

[(1, 1489642690), (2, 744821345), (5, 297928538), (10, 148964269), (31, 48052990), (62, 24026495), (127, 11729470), (155, 9610598), (157, 9488170), (241, 6181090), (254, 5864735), (310, 4805299), (314, 4744085), (482, 3090545), (635, 2345894), (785, 1897634), (1205, 1236218), (1270, 1172947), (1570, 948817), (2410, 618109), (3937, 378370), (4867, 306070), (7471, 199390), (7874, 189185), (9734, 153035), (14942, 99695), (19685, 75674), (19939, 74710), (24335, 61214), (30607, 48670), (37355, 39878), (37837, 39370)]