64486120

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{20407}}^1$

素因数の和:20497

約数の個数: 32

約数和(自身を含む): 146937600

約数和(自身を除く): 82451480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 20407, 40814, 81628, 102035, 163256, 204070, 408140, 816280, 1612153, 3224306, 6448612, 8060765, 12897224, 16121530, 32243060, 64486120]

約数ペア:

[(1, 64486120), (2, 32243060), (4, 16121530), (5, 12897224), (8, 8060765), (10, 6448612), (20, 3224306), (40, 1612153), (79, 816280), (158, 408140), (316, 204070), (395, 163256), (632, 102035), (790, 81628), (1580, 40814), (3160, 20407)]