7981720

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{521}}^1$

素因数の和:915

約数の個数: 32

約数和(自身を含む): 18040320

約数和(自身を除く): 10058600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 521, 766, 1042, 1532, 1915, 2084, 2605, 3064, 3830, 4168, 5210, 7660, 10420, 15320, 20840, 199543, 399086, 798172, 997715, 1596344, 1995430, 3990860, 7981720]

約数ペア:

[(1, 7981720), (2, 3990860), (4, 1995430), (5, 1596344), (8, 997715), (10, 798172), (20, 399086), (40, 199543), (383, 20840), (521, 15320), (766, 10420), (1042, 7660), (1532, 5210), (1915, 4168), (2084, 3830), (2605, 3064)]