18700778852

素因数分解:

$2^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{769}}^1\times {\mathrm{2341}}^1$

素因数の和:3181

約数の個数: 72

約数和(自身を含む): 38854763640

約数和(自身を除く): 20153984788

約数列:

[1, 2, 4, 7, 14, 28, 49, 53, 98, 106, 196, 212, 371, 742, 769, 1484, 1538, 2341, 2597, 3076, 4682, 5194, 5383, 9364, 10388, 10766, 16387, 21532, 32774, 37681, 40757, 65548, 75362, 81514, 114709, 124073, 150724, 163028, 229418, 248146, 285299, 458836, 496292, 570598, 868511, 1141196, 1737022, 1800229, 1997093, 3474044, 3600458, 3994186, 6079577, 7200916, 7988372, 12159154, 12601603, 24318308, 25203206, 50406412, 88211221, 95412137, 176422442, 190824274, 352844884, 381648548, 667884959, 1335769918, 2671539836, 4675194713, 9350389426, 18700778852]

約数ペア:

[(1, 18700778852), (2, 9350389426), (4, 4675194713), (7, 2671539836), (14, 1335769918), (28, 667884959), (49, 381648548), (53, 352844884), (98, 190824274), (106, 176422442), (196, 95412137), (212, 88211221), (371, 50406412), (742, 25203206), (769, 24318308), (1484, 12601603), (1538, 12159154), (2341, 7988372), (2597, 7200916), (3076, 6079577), (4682, 3994186), (5194, 3600458), (5383, 3474044), (9364, 1997093), (10388, 1800229), (10766, 1737022), (16387, 1141196), (21532, 868511), (32774, 570598), (37681, 496292), (40757, 458836), (65548, 285299), (75362, 248146), (81514, 229418), (114709, 163028), (124073, 150724)]