201779720

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{13171}}^1$

素因数の和:13565

約数の個数: 32

約数和(自身を含む): 455224320

約数和(自身を除く): 253444600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 766, 1532, 1915, 3064, 3830, 7660, 13171, 15320, 26342, 52684, 65855, 105368, 131710, 263420, 526840, 5044493, 10088986, 20177972, 25222465, 40355944, 50444930, 100889860, 201779720]

約数ペア:

[(1, 201779720), (2, 100889860), (4, 50444930), (5, 40355944), (8, 25222465), (10, 20177972), (20, 10088986), (40, 5044493), (383, 526840), (766, 263420), (1532, 131710), (1915, 105368), (3064, 65855), (3830, 52684), (7660, 26342), (13171, 15320)]