291560

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 677160

約数和(自身を除く): 385600

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 197, 296, 370, 394, 740, 788, 985, 1480, 1576, 1970, 3940, 7289, 7880, 14578, 29156, 36445, 58312, 72890, 145780, 291560]

約数ペア:

[(1, 291560), (2, 145780), (4, 72890), (5, 58312), (8, 36445), (10, 29156), (20, 14578), (37, 7880), (40, 7289), (74, 3940), (148, 1970), (185, 1576), (197, 1480), (296, 985), (370, 788), (394, 740)]