720401188

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:657

約数の個数: 96

約数和(自身を含む): 1512304640

約数和(自身を除く): 791903452

約数列:

[1, 2, 4, 13, 19, 26, 31, 38, 43, 52, 62, 76, 86, 124, 172, 247, 403, 494, 547, 559, 589, 806, 817, 988, 1094, 1118, 1178, 1333, 1612, 1634, 2188, 2236, 2356, 2666, 3268, 5332, 7111, 7657, 10393, 10621, 14222, 15314, 16957, 17329, 20786, 21242, 23521, 25327, 28444, 30628, 33914, 34658, 41572, 42484, 47042, 50654, 67828, 69316, 94084, 101308, 135109, 220441, 270218, 305773, 322183, 329251, 440882, 446899, 540436, 611546, 644366, 658502, 729151, 881764, 893798, 1223092, 1288732, 1317004, 1458302, 1787596, 2916604, 4188379, 5809687, 8376758, 9478963, 11619374, 13853869, 16753516, 18957926, 23238748, 27707738, 37915852, 55415476, 180100297, 360200594, 720401188]

約数ペア:

[(1, 720401188), (2, 360200594), (4, 180100297), (13, 55415476), (19, 37915852), (26, 27707738), (31, 23238748), (38, 18957926), (43, 16753516), (52, 13853869), (62, 11619374), (76, 9478963), (86, 8376758), (124, 5809687), (172, 4188379), (247, 2916604), (403, 1787596), (494, 1458302), (547, 1317004), (559, 1288732), (589, 1223092), (806, 893798), (817, 881764), (988, 729151), (1094, 658502), (1118, 644366), (1178, 611546), (1333, 540436), (1612, 446899), (1634, 440882), (2188, 329251), (2236, 322183), (2356, 305773), (2666, 270218), (3268, 220441), (5332, 135109), (7111, 101308), (7657, 94084), (10393, 69316), (10621, 67828), (14222, 50654), (15314, 47042), (16957, 42484), (17329, 41572), (20786, 34658), (21242, 33914), (23521, 30628), (25327, 28444)]