66980500

素因数分解:

$2^2\times 5^3\times {\mathrm{109}}^1\times {\mathrm{1229}}^1$

素因数の和:1357

約数の個数: 48

約数和(自身を含む): 147747600

約数和(自身を除く): 80767100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 125, 218, 250, 436, 500, 545, 1090, 1229, 2180, 2458, 2725, 4916, 5450, 6145, 10900, 12290, 13625, 24580, 27250, 30725, 54500, 61450, 122900, 133961, 153625, 267922, 307250, 535844, 614500, 669805, 1339610, 2679220, 3349025, 6698050, 13396100, 16745125, 33490250, 66980500]

約数ペア:

[(1, 66980500), (2, 33490250), (4, 16745125), (5, 13396100), (10, 6698050), (20, 3349025), (25, 2679220), (50, 1339610), (100, 669805), (109, 614500), (125, 535844), (218, 307250), (250, 267922), (436, 153625), (500, 133961), (545, 122900), (1090, 61450), (1229, 54500), (2180, 30725), (2458, 27250), (2725, 24580), (4916, 13625), (5450, 12290), (6145, 10900)]