28307580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67399}}^1$

素因数の和:67418

約数の個数: 48

約数和(自身を含む): 90585600

約数和(自身を除く): 62278020

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, 67399, 134798, 202197, 269596, 336995, 404394, 471793, 673990, 808788, 943586, 1010985, 1347980, 1415379, 1887172, 2021970, 2358965, 2830758, 4043940, 4717930, 5661516, 7076895, 9435860, 14153790, 28307580]

約数ペア:

[(1, 28307580), (2, 14153790), (3, 9435860), (4, 7076895), (5, 5661516), (6, 4717930), (7, 4043940), (10, 2830758), (12, 2358965), (14, 2021970), (15, 1887172), (20, 1415379), (21, 1347980), (28, 1010985), (30, 943586), (35, 808788), (42, 673990), (60, 471793), (70, 404394), (84, 336995), (105, 269596), (140, 202197), (210, 134798), (420, 67399)]