65625020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{53791}}^1$

素因数の和:53861

約数の個数: 24

約数和(自身を含む): 140074368

約数和(自身を除く): 74449348

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 53791, 107582, 215164, 268955, 537910, 1075820, 3281251, 6562502, 13125004, 16406255, 32812510, 65625020]

約数ペア:

[(1, 65625020), (2, 32812510), (4, 16406255), (5, 13125004), (10, 6562502), (20, 3281251), (61, 1075820), (122, 537910), (244, 268955), (305, 215164), (610, 107582), (1220, 53791)]