19388075

素因数分解:

$5^2\times 7^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:74

約数の個数: 60

約数和(自身を含む): 31259160

約数和(自身を除く): 11871085

約数列:

[1, 5, 7, 17, 19, 25, 35, 49, 85, 95, 119, 133, 175, 245, 323, 343, 425, 475, 595, 665, 833, 931, 1225, 1615, 1715, 2261, 2401, 2975, 3325, 4165, 4655, 5831, 6517, 8075, 8575, 11305, 12005, 15827, 20825, 23275, 29155, 32585, 40817, 45619, 56525, 60025, 79135, 110789, 145775, 162925, 204085, 228095, 395675, 553945, 775523, 1020425, 1140475, 2769725, 3877615, 19388075]

約数ペア:

[(1, 19388075), (5, 3877615), (7, 2769725), (17, 1140475), (19, 1020425), (25, 775523), (35, 553945), (49, 395675), (85, 228095), (95, 204085), (119, 162925), (133, 145775), (175, 110789), (245, 79135), (323, 60025), (343, 56525), (425, 45619), (475, 40817), (595, 32585), (665, 29155), (833, 23275), (931, 20825), (1225, 15827), (1615, 12005), (1715, 11305), (2261, 8575), (2401, 8075), (2975, 6517), (3325, 5831), (4165, 4655)]