64340680

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 149040000

約数和(自身を除く): 84699320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 137, 199, 236, 274, 295, 398, 472, 548, 590, 685, 796, 995, 1096, 1180, 1370, 1592, 1990, 2360, 2740, 3980, 5480, 7960, 8083, 11741, 16166, 23482, 27263, 32332, 40415, 46964, 54526, 58705, 64664, 80830, 93928, 109052, 117410, 136315, 161660, 218104, 234820, 272630, 323320, 469640, 545260, 1090520, 1608517, 3217034, 6434068, 8042585, 12868136, 16085170, 32170340, 64340680]

約数ペア:

[(1, 64340680), (2, 32170340), (4, 16085170), (5, 12868136), (8, 8042585), (10, 6434068), (20, 3217034), (40, 1608517), (59, 1090520), (118, 545260), (137, 469640), (199, 323320), (236, 272630), (274, 234820), (295, 218104), (398, 161660), (472, 136315), (548, 117410), (590, 109052), (685, 93928), (796, 80830), (995, 64664), (1096, 58705), (1180, 54526), (1370, 46964), (1592, 40415), (1990, 32332), (2360, 27263), (2740, 23482), (3980, 16166), (5480, 11741), (7960, 8083)]