65078920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1693}}^1$

素因数の和:1766

約数の個数: 48

約数和(自身を含む): 151392780

約数和(自身を除く): 86313860

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 961, 1240, 1693, 1922, 3386, 3844, 4805, 6772, 7688, 8465, 9610, 13544, 16930, 19220, 33860, 38440, 52483, 67720, 104966, 209932, 262415, 419864, 524830, 1049660, 1626973, 2099320, 3253946, 6507892, 8134865, 13015784, 16269730, 32539460, 65078920]

約数ペア:

[(1, 65078920), (2, 32539460), (4, 16269730), (5, 13015784), (8, 8134865), (10, 6507892), (20, 3253946), (31, 2099320), (40, 1626973), (62, 1049660), (124, 524830), (155, 419864), (248, 262415), (310, 209932), (620, 104966), (961, 67720), (1240, 52483), (1693, 38440), (1922, 33860), (3386, 19220), (3844, 16930), (4805, 13544), (6772, 9610), (7688, 8465)]