87578540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{1229}}^1$

素因数の和:1754

約数の個数: 48

約数和(自身を含む): 210772800

約数和(自身を除く): 123194260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 509, 1018, 1229, 2036, 2458, 2545, 3563, 4916, 5090, 6145, 7126, 8603, 10180, 12290, 14252, 17206, 17815, 24580, 34412, 35630, 43015, 71260, 86030, 172060, 625561, 1251122, 2502244, 3127805, 4378927, 6255610, 8757854, 12511220, 17515708, 21894635, 43789270, 87578540]

約数ペア:

[(1, 87578540), (2, 43789270), (4, 21894635), (5, 17515708), (7, 12511220), (10, 8757854), (14, 6255610), (20, 4378927), (28, 3127805), (35, 2502244), (70, 1251122), (140, 625561), (509, 172060), (1018, 86030), (1229, 71260), (2036, 43015), (2458, 35630), (2545, 34412), (3563, 24580), (4916, 17815), (5090, 17206), (6145, 14252), (7126, 12290), (8603, 10180)]