639773025125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{75611}}^1$

素因数の和:75807

約数の個数: 64

約数和(自身を含む): 887774404608

約数和(自身を除く): 248001379483

約数列:

[1, 5, 13, 25, 41, 65, 125, 127, 205, 325, 533, 635, 1025, 1625, 1651, 2665, 3175, 5125, 5207, 8255, 13325, 15875, 26035, 41275, 66625, 67691, 75611, 130175, 206375, 338455, 378055, 650875, 982943, 1692275, 1890275, 3100051, 4914715, 8461375, 9451375, 9602597, 15500255, 24573575, 40300663, 48012985, 77501275, 122867875, 124833761, 201503315, 240064925, 387506375, 393706477, 624168805, 1007516575, 1200324625, 1968532385, 3120844025, 5037582875, 5118184201, 9842661925, 15604220125, 25590921005, 49213309625, 127954605025, 639773025125]

約数ペア:

[(1, 639773025125), (5, 127954605025), (13, 49213309625), (25, 25590921005), (41, 15604220125), (65, 9842661925), (125, 5118184201), (127, 5037582875), (205, 3120844025), (325, 1968532385), (533, 1200324625), (635, 1007516575), (1025, 624168805), (1625, 393706477), (1651, 387506375), (2665, 240064925), (3175, 201503315), (5125, 124833761), (5207, 122867875), (8255, 77501275), (13325, 48012985), (15875, 40300663), (26035, 24573575), (41275, 15500255), (66625, 9602597), (67691, 9451375), (75611, 8461375), (130175, 4914715), (206375, 3100051), (338455, 1890275), (378055, 1692275), (650875, 982943)]