128961160

素因数分解:

$2^3\times 5^1\times {\mathrm{911}}^1\times {\mathrm{3539}}^1$

素因数の和:4461

約数の個数: 32

約数和(自身を含む): 290563200

約数和(自身を除く): 161602040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 911, 1822, 3539, 3644, 4555, 7078, 7288, 9110, 14156, 17695, 18220, 28312, 35390, 36440, 70780, 141560, 3224029, 6448058, 12896116, 16120145, 25792232, 32240290, 64480580, 128961160]

約数ペア:

[(1, 128961160), (2, 64480580), (4, 32240290), (5, 25792232), (8, 16120145), (10, 12896116), (20, 6448058), (40, 3224029), (911, 141560), (1822, 70780), (3539, 36440), (3644, 35390), (4555, 28312), (7078, 18220), (7288, 17695), (9110, 14156)]