81978060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{9973}}^1$

素因数の和:10122

約数の個数: 48

約数和(自身を含む): 231237216

約数和(自身を除く): 149259156

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 137, 274, 411, 548, 685, 822, 1370, 1644, 2055, 2740, 4110, 8220, 9973, 19946, 29919, 39892, 49865, 59838, 99730, 119676, 149595, 199460, 299190, 598380, 1366301, 2732602, 4098903, 5465204, 6831505, 8197806, 13663010, 16395612, 20494515, 27326020, 40989030, 81978060]

約数ペア:

[(1, 81978060), (2, 40989030), (3, 27326020), (4, 20494515), (5, 16395612), (6, 13663010), (10, 8197806), (12, 6831505), (15, 5465204), (20, 4098903), (30, 2732602), (60, 1366301), (137, 598380), (274, 299190), (411, 199460), (548, 149595), (685, 119676), (822, 99730), (1370, 59838), (1644, 49865), (2055, 39892), (2740, 29919), (4110, 19946), (8220, 9973)]