38869640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:362

約数の個数: 64

約数和(自身を含む): 90765360

約数和(自身を除く): 51895720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 137, 164, 173, 205, 274, 328, 346, 410, 548, 685, 692, 820, 865, 1096, 1370, 1384, 1640, 1730, 2740, 3460, 5480, 5617, 6920, 7093, 11234, 14186, 22468, 23701, 28085, 28372, 35465, 44936, 47402, 56170, 56744, 70930, 94804, 112340, 118505, 141860, 189608, 224680, 237010, 283720, 474020, 948040, 971741, 1943482, 3886964, 4858705, 7773928, 9717410, 19434820, 38869640]

約数ペア:

[(1, 38869640), (2, 19434820), (4, 9717410), (5, 7773928), (8, 4858705), (10, 3886964), (20, 1943482), (40, 971741), (41, 948040), (82, 474020), (137, 283720), (164, 237010), (173, 224680), (205, 189608), (274, 141860), (328, 118505), (346, 112340), (410, 94804), (548, 70930), (685, 56744), (692, 56170), (820, 47402), (865, 44936), (1096, 35465), (1370, 28372), (1384, 28085), (1640, 23701), (1730, 22468), (2740, 14186), (3460, 11234), (5480, 7093), (5617, 6920)]