31415590

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{431}}^1$

素因数の和:672

約数の個数: 32

約数和(自身を含む): 58506624

約数和(自身を除く): 27091034

約数列:

[1, 2, 5, 10, 37, 74, 185, 197, 370, 394, 431, 862, 985, 1970, 2155, 4310, 7289, 14578, 15947, 31894, 36445, 72890, 79735, 84907, 159470, 169814, 424535, 849070, 3141559, 6283118, 15707795, 31415590]

約数ペア:

[(1, 31415590), (2, 15707795), (5, 6283118), (10, 3141559), (37, 849070), (74, 424535), (185, 169814), (197, 159470), (370, 84907), (394, 79735), (431, 72890), (862, 36445), (985, 31894), (1970, 15947), (2155, 14578), (4310, 7289)]