870820040

素因数分解:

$2^3\times 5^1\times {\mathrm{983}}^1\times {\mathrm{22147}}^1$

素因数の和:23141

約数の個数: 32

約数和(自身を含む): 1961426880

約数和(自身を除く): 1090606840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 983, 1966, 3932, 4915, 7864, 9830, 19660, 22147, 39320, 44294, 88588, 110735, 177176, 221470, 442940, 885880, 21770501, 43541002, 87082004, 108852505, 174164008, 217705010, 435410020, 870820040]

約数ペア:

[(1, 870820040), (2, 435410020), (4, 217705010), (5, 174164008), (8, 108852505), (10, 87082004), (20, 43541002), (40, 21770501), (983, 885880), (1966, 442940), (3932, 221470), (4915, 177176), (7864, 110735), (9830, 88588), (19660, 44294), (22147, 39320)]