81408008

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{269}}^1$

素因数の和:486

約数の個数: 64

約数和(自身を含む): 176904000

約数和(自身を除く): 95495992

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 181, 209, 269, 362, 418, 538, 724, 836, 1076, 1448, 1672, 1991, 2152, 2959, 3439, 3982, 5111, 5918, 6878, 7964, 10222, 11836, 13756, 15928, 20444, 23672, 27512, 37829, 40888, 48689, 56221, 75658, 97378, 112442, 151316, 194756, 224884, 302632, 389512, 449768, 535579, 925091, 1071158, 1850182, 2142316, 3700364, 4284632, 7400728, 10176001, 20352002, 40704004, 81408008]

約数ペア:

[(1, 81408008), (2, 40704004), (4, 20352002), (8, 10176001), (11, 7400728), (19, 4284632), (22, 3700364), (38, 2142316), (44, 1850182), (76, 1071158), (88, 925091), (152, 535579), (181, 449768), (209, 389512), (269, 302632), (362, 224884), (418, 194756), (538, 151316), (724, 112442), (836, 97378), (1076, 75658), (1448, 56221), (1672, 48689), (1991, 40888), (2152, 37829), (2959, 27512), (3439, 23672), (3982, 20444), (5111, 15928), (5918, 13756), (6878, 11836), (7964, 10222)]