80713580

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{739}}^1$

素因数の和:918

約数の個数: 48

約数和(自身を含む): 175042560

約数和(自身を除く): 94328980

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 127, 172, 215, 254, 430, 508, 635, 739, 860, 1270, 1478, 2540, 2956, 3695, 5461, 7390, 10922, 14780, 21844, 27305, 31777, 54610, 63554, 93853, 109220, 127108, 158885, 187706, 317770, 375412, 469265, 635540, 938530, 1877060, 4035679, 8071358, 16142716, 20178395, 40356790, 80713580]

約数ペア:

[(1, 80713580), (2, 40356790), (4, 20178395), (5, 16142716), (10, 8071358), (20, 4035679), (43, 1877060), (86, 938530), (127, 635540), (172, 469265), (215, 375412), (254, 317770), (430, 187706), (508, 158885), (635, 127108), (739, 109220), (860, 93853), (1270, 63554), (1478, 54610), (2540, 31777), (2956, 27305), (3695, 21844), (5461, 14780), (7390, 10922)]