16388840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31517}}^1$

素因数の和:31541

約数の個数: 32

約数和(自身を含む): 39712680

約数和(自身を除く): 23323840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 31517, 63034, 126068, 157585, 252136, 315170, 409721, 630340, 819442, 1260680, 1638884, 2048605, 3277768, 4097210, 8194420, 16388840]

約数ペア:

[(1, 16388840), (2, 8194420), (4, 4097210), (5, 3277768), (8, 2048605), (10, 1638884), (13, 1260680), (20, 819442), (26, 630340), (40, 409721), (52, 315170), (65, 252136), (104, 157585), (130, 126068), (260, 63034), (520, 31517)]