81405310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{631}}^1$

素因数の和:761

約数の個数: 64

約数和(自身を含む): 178375680

約数和(自身を除く): 96970370

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 97, 133, 190, 194, 266, 485, 631, 665, 679, 970, 1262, 1330, 1358, 1843, 3155, 3395, 3686, 4417, 6310, 6790, 8834, 9215, 11989, 12901, 18430, 22085, 23978, 25802, 44170, 59945, 61207, 64505, 83923, 119890, 122414, 129010, 167846, 306035, 419615, 428449, 612070, 839230, 856898, 1162933, 2142245, 2325866, 4284490, 5814665, 8140531, 11629330, 16281062, 40702655, 81405310]

約数ペア:

[(1, 81405310), (2, 40702655), (5, 16281062), (7, 11629330), (10, 8140531), (14, 5814665), (19, 4284490), (35, 2325866), (38, 2142245), (70, 1162933), (95, 856898), (97, 839230), (133, 612070), (190, 428449), (194, 419615), (266, 306035), (485, 167846), (631, 129010), (665, 122414), (679, 119890), (970, 83923), (1262, 64505), (1330, 61207), (1358, 59945), (1843, 44170), (3155, 25802), (3395, 23978), (3686, 22085), (4417, 18430), (6310, 12901), (6790, 11989), (8834, 9215)]