31507240

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{1489}}^1$

素因数の和:1546

約数の個数: 48

約数和(自身を含む): 74157300

約数和(自身を除く): 42650060

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 529, 920, 1058, 1489, 2116, 2645, 2978, 4232, 5290, 5956, 7445, 10580, 11912, 14890, 21160, 29780, 34247, 59560, 68494, 136988, 171235, 273976, 342470, 684940, 787681, 1369880, 1575362, 3150724, 3938405, 6301448, 7876810, 15753620, 31507240]

約数ペア:

[(1, 31507240), (2, 15753620), (4, 7876810), (5, 6301448), (8, 3938405), (10, 3150724), (20, 1575362), (23, 1369880), (40, 787681), (46, 684940), (92, 342470), (115, 273976), (184, 171235), (230, 136988), (460, 68494), (529, 59560), (920, 34247), (1058, 29780), (1489, 21160), (2116, 14890), (2645, 11912), (2978, 10580), (4232, 7445), (5290, 5956)]