12865708160

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{490309}}^1$

素因数の和:490369

約数の個数: 64

約数和(自身を含む): 31507320600

約数和(自身を除く): 18641612440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 320, 328, 410, 640, 656, 820, 1312, 1640, 2624, 3280, 5248, 6560, 13120, 26240, 490309, 980618, 1961236, 2451545, 3922472, 4903090, 7844944, 9806180, 15689888, 19612360, 20102669, 31379776, 39224720, 40205338, 62759552, 78449440, 80410676, 100513345, 156898880, 160821352, 201026690, 313797760, 321642704, 402053380, 643285408, 804106760, 1286570816, 1608213520, 2573141632, 3216427040, 6432854080, 12865708160]

約数ペア:

[(1, 12865708160), (2, 6432854080), (4, 3216427040), (5, 2573141632), (8, 1608213520), (10, 1286570816), (16, 804106760), (20, 643285408), (32, 402053380), (40, 321642704), (41, 313797760), (64, 201026690), (80, 160821352), (82, 156898880), (128, 100513345), (160, 80410676), (164, 78449440), (205, 62759552), (320, 40205338), (328, 39224720), (410, 31379776), (640, 20102669), (656, 19612360), (820, 15689888), (1312, 9806180), (1640, 7844944), (2624, 4903090), (3280, 3922472), (5248, 2451545), (6560, 1961236), (13120, 980618), (26240, 490309)]