71687440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{81463}}^1$

素因数の和:81487

約数の個数: 40

約数和(自身を含む): 181827648

約数和(自身を除く): 110140208

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 81463, 162926, 325852, 407315, 651704, 814630, 896093, 1303408, 1629260, 1792186, 3258520, 3584372, 4480465, 6517040, 7168744, 8960930, 14337488, 17921860, 35843720, 71687440]

約数ペア:

[(1, 71687440), (2, 35843720), (4, 17921860), (5, 14337488), (8, 8960930), (10, 7168744), (11, 6517040), (16, 4480465), (20, 3584372), (22, 3258520), (40, 1792186), (44, 1629260), (55, 1303408), (80, 896093), (88, 814630), (110, 651704), (176, 407315), (220, 325852), (440, 162926), (880, 81463)]