4077320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7841}}^1$

素因数の和:7865

約数の個数: 32

約数和(自身を含む): 9880920

約数和(自身を除く): 5803600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 7841, 15682, 31364, 39205, 62728, 78410, 101933, 156820, 203866, 313640, 407732, 509665, 815464, 1019330, 2038660, 4077320]

約数ペア:

[(1, 4077320), (2, 2038660), (4, 1019330), (5, 815464), (8, 509665), (10, 407732), (13, 313640), (20, 203866), (26, 156820), (40, 101933), (52, 78410), (65, 62728), (104, 39205), (130, 31364), (260, 15682), (520, 7841)]