128519950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1327}}^1$

素因数の和:1501

約数の個数: 48

約数和(自身を含む): 259358400

約数和(自身を除く): 130838450

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 149, 298, 325, 650, 745, 1327, 1490, 1937, 2654, 3725, 3874, 6635, 7450, 9685, 13270, 17251, 19370, 33175, 34502, 48425, 66350, 86255, 96850, 172510, 197723, 395446, 431275, 862550, 988615, 1977230, 2570399, 4943075, 5140798, 9886150, 12851995, 25703990, 64259975, 128519950]

約数ペア:

[(1, 128519950), (2, 64259975), (5, 25703990), (10, 12851995), (13, 9886150), (25, 5140798), (26, 4943075), (50, 2570399), (65, 1977230), (130, 988615), (149, 862550), (298, 431275), (325, 395446), (650, 197723), (745, 172510), (1327, 96850), (1490, 86255), (1937, 66350), (2654, 48425), (3725, 34502), (3874, 33175), (6635, 19370), (7450, 17251), (9685, 13270)]