128514340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{491}}^1\times {\mathrm{569}}^1$

素因数の和:1092

約数の個数: 48

約数和(自身を含む): 282683520

約数和(自身を除く): 154169180

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 491, 569, 982, 1138, 1964, 2276, 2455, 2845, 4910, 5690, 9820, 11293, 11380, 13087, 22586, 26174, 45172, 52348, 56465, 65435, 112930, 130870, 225860, 261740, 279379, 558758, 1117516, 1396895, 2793790, 5587580, 6425717, 12851434, 25702868, 32128585, 64257170, 128514340]

約数ペア:

[(1, 128514340), (2, 64257170), (4, 32128585), (5, 25702868), (10, 12851434), (20, 6425717), (23, 5587580), (46, 2793790), (92, 1396895), (115, 1117516), (230, 558758), (460, 279379), (491, 261740), (569, 225860), (982, 130870), (1138, 112930), (1964, 65435), (2276, 56465), (2455, 52348), (2845, 45172), (4910, 26174), (5690, 22586), (9820, 13087), (11293, 11380)]