42806820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{101921}}^1$

素因数の和:101940

約数の個数: 48

約数和(自身を含む): 136983168

約数和(自身を除く): 94176348

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 101921, 203842, 305763, 407684, 509605, 611526, 713447, 1019210, 1223052, 1426894, 1528815, 2038420, 2140341, 2853788, 3057630, 3567235, 4280682, 6115260, 7134470, 8561364, 10701705, 14268940, 21403410, 42806820]

約数ペア:

[(1, 42806820), (2, 21403410), (3, 14268940), (4, 10701705), (5, 8561364), (6, 7134470), (7, 6115260), (10, 4280682), (12, 3567235), (14, 3057630), (15, 2853788), (20, 2140341), (21, 2038420), (28, 1528815), (30, 1426894), (35, 1223052), (42, 1019210), (60, 713447), (70, 611526), (84, 509605), (105, 407684), (140, 305763), (210, 203842), (420, 101921)]