72020840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{105913}}^1$

素因数の和:105941

約数の個数: 32

約数和(自身を含む): 171580680

約数和(自身を除く): 99559840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 105913, 211826, 423652, 529565, 847304, 1059130, 1800521, 2118260, 3601042, 4236520, 7202084, 9002605, 14404168, 18005210, 36010420, 72020840]

約数ペア:

[(1, 72020840), (2, 36010420), (4, 18005210), (5, 14404168), (8, 9002605), (10, 7202084), (17, 4236520), (20, 3601042), (34, 2118260), (40, 1800521), (68, 1059130), (85, 847304), (136, 529565), (170, 423652), (340, 211826), (680, 105913)]