128913712

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{2557}}^1$

素因数の和:2725

約数の個数: 40

約数和(自身を含む): 262634976

約数和(自身を除く): 133721264

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 137, 184, 274, 368, 548, 1096, 2192, 2557, 3151, 5114, 6302, 10228, 12604, 20456, 25208, 40912, 50416, 58811, 117622, 235244, 350309, 470488, 700618, 940976, 1401236, 2802472, 5604944, 8057107, 16114214, 32228428, 64456856, 128913712]

約数ペア:

[(1, 128913712), (2, 64456856), (4, 32228428), (8, 16114214), (16, 8057107), (23, 5604944), (46, 2802472), (92, 1401236), (137, 940976), (184, 700618), (274, 470488), (368, 350309), (548, 235244), (1096, 117622), (2192, 58811), (2557, 50416), (3151, 40912), (5114, 25208), (6302, 20456), (10228, 12604)]