65375840

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4591}}^1$

素因数の和:4695

約数の個数: 48

約数和(自身を含む): 156219840

約数和(自身を除く): 90844000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1424, 1780, 2848, 3560, 4591, 7120, 9182, 14240, 18364, 22955, 36728, 45910, 73456, 91820, 146912, 183640, 367280, 408599, 734560, 817198, 1634396, 2042995, 3268792, 4085990, 6537584, 8171980, 13075168, 16343960, 32687920, 65375840]

約数ペア:

[(1, 65375840), (2, 32687920), (4, 16343960), (5, 13075168), (8, 8171980), (10, 6537584), (16, 4085990), (20, 3268792), (32, 2042995), (40, 1634396), (80, 817198), (89, 734560), (160, 408599), (178, 367280), (356, 183640), (445, 146912), (712, 91820), (890, 73456), (1424, 45910), (1780, 36728), (2848, 22955), (3560, 18364), (4591, 14240), (7120, 9182)]