81384472

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{2549}}^1$

素因数の和:2875

約数の個数: 32

約数和(自身を含む): 164934000

約数和(自身を除く): 83549528

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 307, 614, 1228, 2456, 2549, 3991, 5098, 7982, 10196, 15964, 20392, 31928, 33137, 66274, 132548, 265096, 782543, 1565086, 3130172, 6260344, 10173059, 20346118, 40692236, 81384472]

約数ペア:

[(1, 81384472), (2, 40692236), (4, 20346118), (8, 10173059), (13, 6260344), (26, 3130172), (52, 1565086), (104, 782543), (307, 265096), (614, 132548), (1228, 66274), (2456, 33137), (2549, 31928), (3991, 20392), (5098, 15964), (7982, 10196)]