217635775

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{389}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 324979200

約数和(自身を除く): 107343425

約数列:

[1, 5, 7, 23, 25, 35, 115, 139, 161, 175, 389, 575, 695, 805, 973, 1945, 2723, 3197, 3475, 4025, 4865, 8947, 9725, 13615, 15985, 22379, 24325, 44735, 54071, 62629, 68075, 79925, 111895, 223675, 270355, 313145, 378497, 559475, 1243633, 1351775, 1565725, 1892485, 6218165, 8705431, 9462425, 31090825, 43527155, 217635775]

約数ペア:

[(1, 217635775), (5, 43527155), (7, 31090825), (23, 9462425), (25, 8705431), (35, 6218165), (115, 1892485), (139, 1565725), (161, 1351775), (175, 1243633), (389, 559475), (575, 378497), (695, 313145), (805, 270355), (973, 223675), (1945, 111895), (2723, 79925), (3197, 68075), (3475, 62629), (4025, 54071), (4865, 44735), (8947, 24325), (9725, 22379), (13615, 15985)]