20178880100

素因数分解:

$2^2\times 5^2\times {\mathrm{2939}}^1\times {\mathrm{68659}}^1$

素因数の和:71612

約数の個数: 36

約数和(自身を含む): 43803706800

約数和(自身を除く): 23624826700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 2939, 5878, 11756, 14695, 29390, 58780, 68659, 73475, 137318, 146950, 274636, 293900, 343295, 686590, 1373180, 1716475, 3432950, 6865900, 201788801, 403577602, 807155204, 1008944005, 2017888010, 4035776020, 5044720025, 10089440050, 20178880100]

約数ペア:

[(1, 20178880100), (2, 10089440050), (4, 5044720025), (5, 4035776020), (10, 2017888010), (20, 1008944005), (25, 807155204), (50, 403577602), (100, 201788801), (2939, 6865900), (5878, 3432950), (11756, 1716475), (14695, 1373180), (29390, 686590), (58780, 343295), (68659, 293900), (73475, 274636), (137318, 146950)]