63398920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{121921}}^1$

素因数の和:121945

約数の個数: 32

約数和(自身を含む): 153621720

約数和(自身を除く): 90222800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 121921, 243842, 487684, 609605, 975368, 1219210, 1584973, 2438420, 3169946, 4876840, 6339892, 7924865, 12679784, 15849730, 31699460, 63398920]

約数ペア:

[(1, 63398920), (2, 31699460), (4, 15849730), (5, 12679784), (8, 7924865), (10, 6339892), (13, 4876840), (20, 3169946), (26, 2438420), (40, 1584973), (52, 1219210), (65, 975368), (104, 609605), (130, 487684), (260, 243842), (520, 121921)]