65216680

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{5209}}^1$

素因数の和:5533

約数の個数: 32

約数和(自身を含む): 147234600

約数和(自身を除く): 82017920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 5209, 6260, 10418, 12520, 20836, 26045, 41672, 52090, 104180, 208360, 1630417, 3260834, 6521668, 8152085, 13043336, 16304170, 32608340, 65216680]

約数ペア:

[(1, 65216680), (2, 32608340), (4, 16304170), (5, 13043336), (8, 8152085), (10, 6521668), (20, 3260834), (40, 1630417), (313, 208360), (626, 104180), (1252, 52090), (1565, 41672), (2504, 26045), (3130, 20836), (5209, 12520), (6260, 10418)]