20451670

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{647}}^1$

素因数の和:792

約数の個数: 32

約数和(自身を含む): 38491200

約数和(自身を除く): 18039530

約数列:

[1, 2, 5, 10, 29, 58, 109, 145, 218, 290, 545, 647, 1090, 1294, 3161, 3235, 6322, 6470, 15805, 18763, 31610, 37526, 70523, 93815, 141046, 187630, 352615, 705230, 2045167, 4090334, 10225835, 20451670]

約数ペア:

[(1, 20451670), (2, 10225835), (5, 4090334), (10, 2045167), (29, 705230), (58, 352615), (109, 187630), (145, 141046), (218, 93815), (290, 70523), (545, 37526), (647, 31610), (1090, 18763), (1294, 15805), (3161, 6470), (3235, 6322)]