128873140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{25469}}^1$

素因数の和:25512

約数の個数: 48

約数和(自身を含む): 308085120

約数和(自身を除く): 179211980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 5060, 25469, 50938, 101876, 127345, 254690, 280159, 509380, 560318, 585787, 1120636, 1171574, 1400795, 2343148, 2801590, 2928935, 5603180, 5857870, 6443657, 11715740, 12887314, 25774628, 32218285, 64436570, 128873140]

約数ペア:

[(1, 128873140), (2, 64436570), (4, 32218285), (5, 25774628), (10, 12887314), (11, 11715740), (20, 6443657), (22, 5857870), (23, 5603180), (44, 2928935), (46, 2801590), (55, 2343148), (92, 1400795), (110, 1171574), (115, 1120636), (220, 585787), (230, 560318), (253, 509380), (460, 280159), (506, 254690), (1012, 127345), (1265, 101876), (2530, 50938), (5060, 25469)]