81231408

素因数分解:

$2^4\times 3^2\times {\mathrm{31}}^2\times {\mathrm{587}}^1$

素因数の和:663

約数の個数: 90

約数和(自身を含む): 235305252

約数和(自身を除く): 154073844

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 36, 48, 62, 72, 93, 124, 144, 186, 248, 279, 372, 496, 558, 587, 744, 961, 1116, 1174, 1488, 1761, 1922, 2232, 2348, 2883, 3522, 3844, 4464, 4696, 5283, 5766, 7044, 7688, 8649, 9392, 10566, 11532, 14088, 15376, 17298, 18197, 21132, 23064, 28176, 34596, 36394, 42264, 46128, 54591, 69192, 72788, 84528, 109182, 138384, 145576, 163773, 218364, 291152, 327546, 436728, 564107, 655092, 873456, 1128214, 1310184, 1692321, 2256428, 2620368, 3384642, 4512856, 5076963, 6769284, 9025712, 10153926, 13538568, 20307852, 27077136, 40615704, 81231408]

約数ペア:

[(1, 81231408), (2, 40615704), (3, 27077136), (4, 20307852), (6, 13538568), (8, 10153926), (9, 9025712), (12, 6769284), (16, 5076963), (18, 4512856), (24, 3384642), (31, 2620368), (36, 2256428), (48, 1692321), (62, 1310184), (72, 1128214), (93, 873456), (124, 655092), (144, 564107), (186, 436728), (248, 327546), (279, 291152), (372, 218364), (496, 163773), (558, 145576), (587, 138384), (744, 109182), (961, 84528), (1116, 72788), (1174, 69192), (1488, 54591), (1761, 46128), (1922, 42264), (2232, 36394), (2348, 34596), (2883, 28176), (3522, 23064), (3844, 21132), (4464, 18197), (4696, 17298), (5283, 15376), (5766, 14088), (7044, 11532), (7688, 10566), (8649, 9392)]