18774860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72211}}^1$

素因数の和:72233

約数の個数: 24

約数和(自身を含む): 42460656

約数和(自身を除く): 23685796

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 72211, 144422, 288844, 361055, 722110, 938743, 1444220, 1877486, 3754972, 4693715, 9387430, 18774860]

約数ペア:

[(1, 18774860), (2, 9387430), (4, 4693715), (5, 3754972), (10, 1877486), (13, 1444220), (20, 938743), (26, 722110), (52, 361055), (65, 288844), (130, 144422), (260, 72211)]