257510640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1072961}}^1$

素因数の和:1072977

約数の個数: 40

約数和(自身を含む): 798283728

約数和(自身を除く): 540773088

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1072961, 2145922, 3218883, 4291844, 5364805, 6437766, 8583688, 10729610, 12875532, 16094415, 17167376, 21459220, 25751064, 32188830, 42918440, 51502128, 64377660, 85836880, 128755320, 257510640]

約数ペア:

[(1, 257510640), (2, 128755320), (3, 85836880), (4, 64377660), (5, 51502128), (6, 42918440), (8, 32188830), (10, 25751064), (12, 21459220), (15, 17167376), (16, 16094415), (20, 12875532), (24, 10729610), (30, 8583688), (40, 6437766), (48, 5364805), (60, 4291844), (80, 3218883), (120, 2145922), (240, 1072961)]