1277693780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{859}}^1\times {\mathrm{6761}}^1$

素因数の和:7640

約数の個数: 48

約数和(自身を含む): 2930921280

約数和(自身を除く): 1653227500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 859, 1718, 3436, 4295, 6761, 8590, 9449, 13522, 17180, 18898, 27044, 33805, 37796, 47245, 67610, 74371, 94490, 135220, 148742, 188980, 297484, 371855, 743710, 1487420, 5807699, 11615398, 23230796, 29038495, 58076990, 63884689, 116153980, 127769378, 255538756, 319423445, 638846890, 1277693780]

約数ペア:

[(1, 1277693780), (2, 638846890), (4, 319423445), (5, 255538756), (10, 127769378), (11, 116153980), (20, 63884689), (22, 58076990), (44, 29038495), (55, 23230796), (110, 11615398), (220, 5807699), (859, 1487420), (1718, 743710), (3436, 371855), (4295, 297484), (6761, 188980), (8590, 148742), (9449, 135220), (13522, 94490), (17180, 74371), (18898, 67610), (27044, 47245), (33805, 37796)]