25976990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{809}}^1$

素因数の和:861

約数の個数: 48

約数和(自身を含む): 53362800

約数和(自身を除く): 27385810

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 169, 190, 247, 338, 494, 809, 845, 1235, 1618, 1690, 2470, 3211, 4045, 6422, 8090, 10517, 15371, 16055, 21034, 30742, 32110, 52585, 76855, 105170, 136721, 153710, 199823, 273442, 399646, 683605, 999115, 1367210, 1998230, 2597699, 5195398, 12988495, 25976990]

約数ペア:

[(1, 25976990), (2, 12988495), (5, 5195398), (10, 2597699), (13, 1998230), (19, 1367210), (26, 999115), (38, 683605), (65, 399646), (95, 273442), (130, 199823), (169, 153710), (190, 136721), (247, 105170), (338, 76855), (494, 52585), (809, 32110), (845, 30742), (1235, 21034), (1618, 16055), (1690, 15371), (2470, 10517), (3211, 8090), (4045, 6422)]