65208040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{39761}}^1$

素因数の和:39813

約数の個数: 32

約数和(自身を含む): 150300360

約数和(自身を除く): 85092320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 39761, 79522, 159044, 198805, 318088, 397610, 795220, 1590440, 1630201, 3260402, 6520804, 8151005, 13041608, 16302010, 32604020, 65208040]

約数ペア:

[(1, 65208040), (2, 32604020), (4, 16302010), (5, 13041608), (8, 8151005), (10, 6520804), (20, 3260402), (40, 1630201), (41, 1590440), (82, 795220), (164, 397610), (205, 318088), (328, 198805), (410, 159044), (820, 79522), (1640, 39761)]