18781175

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 28926720

約数和(自身を除く): 10145545

約数列:

[1, 5, 7, 17, 25, 35, 59, 85, 107, 119, 175, 295, 413, 425, 535, 595, 749, 1003, 1475, 1819, 2065, 2675, 2975, 3745, 5015, 6313, 7021, 9095, 10325, 12733, 18725, 25075, 31565, 35105, 44191, 45475, 63665, 107321, 157825, 175525, 220955, 318325, 536605, 751247, 1104775, 2683025, 3756235, 18781175]

約数ペア:

[(1, 18781175), (5, 3756235), (7, 2683025), (17, 1104775), (25, 751247), (35, 536605), (59, 318325), (85, 220955), (107, 175525), (119, 157825), (175, 107321), (295, 63665), (413, 45475), (425, 44191), (535, 35105), (595, 31565), (749, 25075), (1003, 18725), (1475, 12733), (1819, 10325), (2065, 9095), (2675, 7021), (2975, 6313), (3745, 5015)]