19318650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9907}}^1$

素因数の和:9935

約数の個数: 48

約数和(自身を含む): 51600864

約数和(自身を除く): 32282214

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 9907, 19814, 29721, 49535, 59442, 99070, 128791, 148605, 247675, 257582, 297210, 386373, 495350, 643955, 743025, 772746, 1287910, 1486050, 1931865, 3219775, 3863730, 6439550, 9659325, 19318650]

約数ペア:

[(1, 19318650), (2, 9659325), (3, 6439550), (5, 3863730), (6, 3219775), (10, 1931865), (13, 1486050), (15, 1287910), (25, 772746), (26, 743025), (30, 643955), (39, 495350), (50, 386373), (65, 297210), (75, 257582), (78, 247675), (130, 148605), (150, 128791), (195, 99070), (325, 59442), (390, 49535), (650, 29721), (975, 19814), (1950, 9907)]