20584900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{4201}}^1$

素因数の和:4229

約数の個数: 54

約数和(自身を含む): 51974538

約数和(自身を除く): 31389638

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4201, 4900, 8402, 16804, 21005, 29407, 42010, 58814, 84020, 105025, 117628, 147035, 205849, 210050, 294070, 411698, 420100, 588140, 735175, 823396, 1029245, 1470350, 2058490, 2940700, 4116980, 5146225, 10292450, 20584900]

約数ペア:

[(1, 20584900), (2, 10292450), (4, 5146225), (5, 4116980), (7, 2940700), (10, 2058490), (14, 1470350), (20, 1029245), (25, 823396), (28, 735175), (35, 588140), (49, 420100), (50, 411698), (70, 294070), (98, 210050), (100, 205849), (140, 147035), (175, 117628), (196, 105025), (245, 84020), (350, 58814), (490, 42010), (700, 29407), (980, 21005), (1225, 16804), (2450, 8402), (4201, 4900)]