90578140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{883}}^1$

素因数の和:1138

約数の個数: 48

約数和(自身を含む): 199600128

約数和(自身を除く): 109021988

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 223, 230, 446, 460, 883, 892, 1115, 1766, 2230, 3532, 4415, 4460, 5129, 8830, 10258, 17660, 20309, 20516, 25645, 40618, 51290, 81236, 101545, 102580, 196909, 203090, 393818, 406180, 787636, 984545, 1969090, 3938180, 4528907, 9057814, 18115628, 22644535, 45289070, 90578140]

約数ペア:

[(1, 90578140), (2, 45289070), (4, 22644535), (5, 18115628), (10, 9057814), (20, 4528907), (23, 3938180), (46, 1969090), (92, 984545), (115, 787636), (223, 406180), (230, 393818), (446, 203090), (460, 196909), (883, 102580), (892, 101545), (1115, 81236), (1766, 51290), (2230, 40618), (3532, 25645), (4415, 20516), (4460, 20309), (5129, 17660), (8830, 10258)]