81921844

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:592

約数の個数: 48

約数和(自身を含む): 161179200

約数和(自身を除く): 79257356

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 163, 323, 326, 389, 646, 652, 778, 1292, 1556, 2771, 3097, 5542, 6194, 6613, 7391, 11084, 12388, 13226, 14782, 26452, 29564, 52649, 63407, 105298, 125647, 126814, 210596, 251294, 253628, 502588, 1077919, 1204733, 2155838, 2409466, 4311676, 4818932, 20480461, 40960922, 81921844]

約数ペア:

[(1, 81921844), (2, 40960922), (4, 20480461), (17, 4818932), (19, 4311676), (34, 2409466), (38, 2155838), (68, 1204733), (76, 1077919), (163, 502588), (323, 253628), (326, 251294), (389, 210596), (646, 126814), (652, 125647), (778, 105298), (1292, 63407), (1556, 52649), (2771, 29564), (3097, 26452), (5542, 14782), (6194, 13226), (6613, 12388), (7391, 11084)]