220164555

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 391974912

約数和(自身を除く): 171810357

約数列:

[1, 3, 5, 13, 15, 39, 61, 65, 83, 183, 195, 223, 249, 305, 415, 669, 793, 915, 1079, 1115, 1245, 2379, 2899, 3237, 3345, 3965, 5063, 5395, 8697, 11895, 13603, 14495, 15189, 16185, 18509, 25315, 40809, 43485, 55527, 65819, 68015, 75945, 92545, 176839, 197457, 204045, 240617, 277635, 329095, 530517, 721851, 884195, 987285, 1129049, 1203085, 2652585, 3387147, 3609255, 5645245, 14677637, 16935735, 44032911, 73388185, 220164555]

約数ペア:

[(1, 220164555), (3, 73388185), (5, 44032911), (13, 16935735), (15, 14677637), (39, 5645245), (61, 3609255), (65, 3387147), (83, 2652585), (183, 1203085), (195, 1129049), (223, 987285), (249, 884195), (305, 721851), (415, 530517), (669, 329095), (793, 277635), (915, 240617), (1079, 204045), (1115, 197457), (1245, 176839), (2379, 92545), (2899, 75945), (3237, 68015), (3345, 65819), (3965, 55527), (5063, 43485), (5395, 40809), (8697, 25315), (11895, 18509), (13603, 16185), (14495, 15189)]