18187480

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{373}}^1$

素因数の和:460

約数の個数: 64

約数和(自身を含む): 43623360

約数和(自身を除く): 25435880

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 53, 92, 106, 115, 184, 212, 230, 265, 373, 424, 460, 530, 746, 920, 1060, 1219, 1492, 1865, 2120, 2438, 2984, 3730, 4876, 6095, 7460, 8579, 9752, 12190, 14920, 17158, 19769, 24380, 34316, 39538, 42895, 48760, 68632, 79076, 85790, 98845, 158152, 171580, 197690, 343160, 395380, 454687, 790760, 909374, 1818748, 2273435, 3637496, 4546870, 9093740, 18187480]

約数ペア:

[(1, 18187480), (2, 9093740), (4, 4546870), (5, 3637496), (8, 2273435), (10, 1818748), (20, 909374), (23, 790760), (40, 454687), (46, 395380), (53, 343160), (92, 197690), (106, 171580), (115, 158152), (184, 98845), (212, 85790), (230, 79076), (265, 68632), (373, 48760), (424, 42895), (460, 39538), (530, 34316), (746, 24380), (920, 19769), (1060, 17158), (1219, 14920), (1492, 12190), (1865, 9752), (2120, 8579), (2438, 7460), (2984, 6095), (3730, 4876)]