69878980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1\times {\mathrm{571}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 152792640

約数和(自身を除く): 82913660

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 211, 290, 422, 571, 580, 844, 1055, 1142, 2110, 2284, 2855, 4220, 5710, 6119, 11420, 12238, 16559, 24476, 30595, 33118, 61190, 66236, 82795, 120481, 122380, 165590, 240962, 331180, 481924, 602405, 1204810, 2409620, 3493949, 6987898, 13975796, 17469745, 34939490, 69878980]

約数ペア:

[(1, 69878980), (2, 34939490), (4, 17469745), (5, 13975796), (10, 6987898), (20, 3493949), (29, 2409620), (58, 1204810), (116, 602405), (145, 481924), (211, 331180), (290, 240962), (422, 165590), (571, 122380), (580, 120481), (844, 82795), (1055, 66236), (1142, 61190), (2110, 33118), (2284, 30595), (2855, 24476), (4220, 16559), (5710, 12238), (6119, 11420)]