72445840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53269}}^1$

素因数の和:53299

約数の個数: 40

約数和(自身を含む): 178347960

約数和(自身を除く): 105902120

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 53269, 106538, 213076, 266345, 426152, 532690, 852304, 905573, 1065380, 1811146, 2130760, 3622292, 4261520, 4527865, 7244584, 9055730, 14489168, 18111460, 36222920, 72445840]

約数ペア:

[(1, 72445840), (2, 36222920), (4, 18111460), (5, 14489168), (8, 9055730), (10, 7244584), (16, 4527865), (17, 4261520), (20, 3622292), (34, 2130760), (40, 1811146), (68, 1065380), (80, 905573), (85, 852304), (136, 532690), (170, 426152), (272, 266345), (340, 213076), (680, 106538), (1360, 53269)]