8020220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{283}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 18369120

約数和(自身を除く): 10348900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 283, 436, 545, 566, 1090, 1132, 1415, 1417, 2180, 2830, 2834, 3679, 5660, 5668, 7085, 7358, 14170, 14716, 18395, 28340, 30847, 36790, 61694, 73580, 123388, 154235, 308470, 401011, 616940, 802022, 1604044, 2005055, 4010110, 8020220]

約数ペア:

[(1, 8020220), (2, 4010110), (4, 2005055), (5, 1604044), (10, 802022), (13, 616940), (20, 401011), (26, 308470), (52, 154235), (65, 123388), (109, 73580), (130, 61694), (218, 36790), (260, 30847), (283, 28340), (436, 18395), (545, 14716), (566, 14170), (1090, 7358), (1132, 7085), (1415, 5668), (1417, 5660), (2180, 3679), (2830, 2834)]