156570080

素因数分解:

$2^5\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1993}}^1$

素因数の和:2499

約数の個数: 48

約数和(自身を含む): 370836144

約数和(自身を除く): 214266064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 491, 982, 1964, 1993, 2455, 3928, 3986, 4910, 7856, 7972, 9820, 9965, 15712, 15944, 19640, 19930, 31888, 39280, 39860, 63776, 78560, 79720, 159440, 318880, 978563, 1957126, 3914252, 4892815, 7828504, 9785630, 15657008, 19571260, 31314016, 39142520, 78285040, 156570080]

約数ペア:

[(1, 156570080), (2, 78285040), (4, 39142520), (5, 31314016), (8, 19571260), (10, 15657008), (16, 9785630), (20, 7828504), (32, 4892815), (40, 3914252), (80, 1957126), (160, 978563), (491, 318880), (982, 159440), (1964, 79720), (1993, 78560), (2455, 63776), (3928, 39860), (3986, 39280), (4910, 31888), (7856, 19930), (7972, 19640), (9820, 15944), (9965, 15712)]