13438640

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{971}}^1$

素因数の和:1157

約数の個数: 40

約数和(自身を含む): 31457808

約数和(自身を除く): 18019168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 971, 1384, 1730, 1942, 2768, 3460, 3884, 4855, 6920, 7768, 9710, 13840, 15536, 19420, 38840, 77680, 167983, 335966, 671932, 839915, 1343864, 1679830, 2687728, 3359660, 6719320, 13438640]

約数ペア:

[(1, 13438640), (2, 6719320), (4, 3359660), (5, 2687728), (8, 1679830), (10, 1343864), (16, 839915), (20, 671932), (40, 335966), (80, 167983), (173, 77680), (346, 38840), (692, 19420), (865, 15536), (971, 13840), (1384, 9710), (1730, 7768), (1942, 6920), (2768, 4855), (3460, 3884)]