640708451884

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^2\times {\mathrm{3823}}^1$

素因数の和:4155

約数の個数: 72

約数和(自身を含む): 1167569729088

約数和(自身を除く): 526861277204

約数列:

[1, 2, 4, 61, 73, 97, 122, 146, 194, 244, 292, 388, 3823, 4453, 5917, 7081, 7646, 8906, 9409, 11834, 14162, 15292, 17812, 18818, 23668, 28324, 37636, 233203, 279079, 370831, 431941, 466406, 558158, 573949, 686857, 741662, 863882, 932812, 1116316, 1147898, 1373714, 1483324, 1727764, 2295796, 2747428, 17023819, 22620691, 27070663, 34047638, 35970607, 41898277, 45241382, 54141326, 68095276, 71941214, 83796554, 90482764, 108282652, 143882428, 167593108, 1651310443, 2194207027, 2625854311, 3302620886, 4388414054, 5251708622, 6605241772, 8776828108, 10503417244, 160177112971, 320354225942, 640708451884]

約数ペア:

[(1, 640708451884), (2, 320354225942), (4, 160177112971), (61, 10503417244), (73, 8776828108), (97, 6605241772), (122, 5251708622), (146, 4388414054), (194, 3302620886), (244, 2625854311), (292, 2194207027), (388, 1651310443), (3823, 167593108), (4453, 143882428), (5917, 108282652), (7081, 90482764), (7646, 83796554), (8906, 71941214), (9409, 68095276), (11834, 54141326), (14162, 45241382), (15292, 41898277), (17812, 35970607), (18818, 34047638), (23668, 27070663), (28324, 22620691), (37636, 17023819), (233203, 2747428), (279079, 2295796), (370831, 1727764), (431941, 1483324), (466406, 1373714), (558158, 1147898), (573949, 1116316), (686857, 932812), (741662, 863882)]