20386600

素因数分解:

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

素因数の和:7870

約数の個数: 48

約数和(自身を含む): 51051420

約数和(自身を除く): 30664820

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 7841, 15682, 31364, 39205, 62728, 78410, 101933, 156820, 196025, 203866, 313640, 392050, 407732, 509665, 784100, 815464, 1019330, 1568200, 2038660, 2548325, 4077320, 5096650, 10193300, 20386600]

約数ペア:

[(1, 20386600), (2, 10193300), (4, 5096650), (5, 4077320), (8, 2548325), (10, 2038660), (13, 1568200), (20, 1019330), (25, 815464), (26, 784100), (40, 509665), (50, 407732), (52, 392050), (65, 313640), (100, 203866), (104, 196025), (130, 156820), (200, 101933), (260, 78410), (325, 62728), (520, 39205), (650, 31364), (1300, 15682), (2600, 7841)]