1640444728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{426311}}^1$

素因数の和:426367

約数の個数: 32

約数和(自身を含む): 3401969760

約数和(自身を除く): 1761525032

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 148, 296, 481, 962, 1924, 3848, 426311, 852622, 1705244, 3410488, 5542043, 11084086, 15773507, 22168172, 31547014, 44336344, 63094028, 126188056, 205055591, 410111182, 820222364, 1640444728]

約数ペア:

[(1, 1640444728), (2, 820222364), (4, 410111182), (8, 205055591), (13, 126188056), (26, 63094028), (37, 44336344), (52, 31547014), (74, 22168172), (104, 15773507), (148, 11084086), (296, 5542043), (481, 3410488), (962, 1705244), (1924, 852622), (3848, 426311)]