81978858

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^3\times {\mathrm{691}}^1$

素因数の和:741

約数の個数: 64

約数和(自身を含む): 197635200

約数和(自身を除く): 115656342

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 169, 234, 338, 351, 507, 691, 702, 1014, 1382, 1521, 2073, 2197, 3042, 4146, 4394, 4563, 6219, 6591, 8983, 9126, 12438, 13182, 17966, 18657, 19773, 26949, 37314, 39546, 53898, 59319, 80847, 116779, 118638, 161694, 233558, 242541, 350337, 485082, 700674, 1051011, 1518127, 2102022, 3036254, 3153033, 4554381, 6306066, 9108762, 13663143, 27326286, 40989429, 81978858]

約数ペア:

[(1, 81978858), (2, 40989429), (3, 27326286), (6, 13663143), (9, 9108762), (13, 6306066), (18, 4554381), (26, 3153033), (27, 3036254), (39, 2102022), (54, 1518127), (78, 1051011), (117, 700674), (169, 485082), (234, 350337), (338, 242541), (351, 233558), (507, 161694), (691, 118638), (702, 116779), (1014, 80847), (1382, 59319), (1521, 53898), (2073, 39546), (2197, 37314), (3042, 26949), (4146, 19773), (4394, 18657), (4563, 17966), (6219, 13182), (6591, 12438), (8983, 9126)]