42780555

素因数分解:

$3^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1447}}^1$

素因数の和:1537

約数の個数: 40

約数和(自身を含む): 77792352

約数和(自身を除く): 35011797

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 81, 135, 219, 365, 405, 657, 1095, 1447, 1971, 3285, 4341, 5913, 7235, 9855, 13023, 21705, 29565, 39069, 65115, 105631, 117207, 195345, 316893, 528155, 586035, 950679, 1584465, 2852037, 4753395, 8556111, 14260185, 42780555]

約数ペア:

[(1, 42780555), (3, 14260185), (5, 8556111), (9, 4753395), (15, 2852037), (27, 1584465), (45, 950679), (73, 586035), (81, 528155), (135, 316893), (219, 195345), (365, 117207), (405, 105631), (657, 65115), (1095, 39069), (1447, 29565), (1971, 21705), (3285, 13023), (4341, 9855), (5913, 7235)]